640758300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:530

約数の個数: 288

約数和(自身を含む): 2333184000

約数和(自身を除く): 1692425700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 35, 39, 42, 49, 50, 52, 60, 65, 70, 75, 78, 84, 91, 98, 100, 105, 130, 140, 147, 150, 156, 175, 182, 195, 196, 210, 245, 260, 273, 294, 300, 325, 343, 350, 364, 390, 420, 455, 479, 490, 525, 546, 588, 637, 650, 686, 700, 735, 780, 910, 958, 975, 980, 1029, 1050, 1092, 1225, 1274, 1300, 1365, 1372, 1437, 1470, 1715, 1820, 1911, 1916, 1950, 2058, 2100, 2275, 2395, 2450, 2548, 2730, 2874, 2940, 3185, 3353, 3430, 3675, 3822, 3900, 4116, 4459, 4550, 4790, 4900, 5145, 5460, 5748, 6227, 6370, 6706, 6825, 6860, 7185, 7350, 7644, 8575, 8918, 9100, 9555, 9580, 10059, 10290, 11975, 12454, 12740, 13377, 13412, 13650, 14370, 14700, 15925, 16765, 17150, 17836, 18681, 19110, 20118, 20580, 22295, 23471, 23950, 24908, 25725, 26754, 27300, 28740, 31135, 31850, 33530, 34300, 35925, 37362, 38220, 40236, 43589, 44590, 46942, 47775, 47900, 50295, 51450, 53508, 62270, 63700, 66885, 67060, 70413, 71850, 74724, 83825, 87178, 89180, 93405, 93884, 95550, 100590, 102900, 111475, 117355, 124540, 130767, 133770, 140826, 143700, 155675, 164297, 167650, 174356, 186810, 191100, 201180, 217945, 222950, 234710, 251475, 261534, 267540, 281652, 305123, 311350, 328594, 334425, 335300, 352065, 373620, 435890, 445900, 467025, 469420, 492891, 502950, 523068, 586775, 610246, 622700, 653835, 657188, 668850, 704130, 821485, 871780, 915369, 934050, 985782, 1005900, 1089725, 1173550, 1220492, 1307670, 1337700, 1408260, 1525615, 1642970, 1760325, 1830738, 1868100, 1971564, 2135861, 2179450, 2347100, 2464455, 2615340, 3051230, 3269175, 3285940, 3520650, 3661476, 4107425, 4271722, 4358900, 4576845, 4928910, 6102460, 6407583, 6538350, 7041300, 7628075, 8214850, 8543444, 9153690, 9857820, 10679305, 12322275, 12815166, 13076700, 15256150, 16429700, 18307380, 21358610, 22884225, 24644550, 25630332, 30512300, 32037915, 42717220, 45768450, 49289100, 53396525, 64075830, 91536900, 106793050, 128151660, 160189575, 213586100, 320379150, 640758300]

約数ペア:

[(1, 640758300), (2, 320379150), (3, 213586100), (4, 160189575), (5, 128151660), (6, 106793050), (7, 91536900), (10, 64075830), (12, 53396525), (13, 49289100), (14, 45768450), (15, 42717220), (20, 32037915), (21, 30512300), (25, 25630332), (26, 24644550), (28, 22884225), (30, 21358610), (35, 18307380), (39, 16429700), (42, 15256150), (49, 13076700), (50, 12815166), (52, 12322275), (60, 10679305), (65, 9857820), (70, 9153690), (75, 8543444), (78, 8214850), (84, 7628075), (91, 7041300), (98, 6538350), (100, 6407583), (105, 6102460), (130, 4928910), (140, 4576845), (147, 4358900), (150, 4271722), (156, 4107425), (175, 3661476), (182, 3520650), (195, 3285940), (196, 3269175), (210, 3051230), (245, 2615340), (260, 2464455), (273, 2347100), (294, 2179450), (300, 2135861), (325, 1971564), (343, 1868100), (350, 1830738), (364, 1760325), (390, 1642970), (420, 1525615), (455, 1408260), (479, 1337700), (490, 1307670), (525, 1220492), (546, 1173550), (588, 1089725), (637, 1005900), (650, 985782), (686, 934050), (700, 915369), (735, 871780), (780, 821485), (910, 704130), (958, 668850), (975, 657188), (980, 653835), (1029, 622700), (1050, 610246), (1092, 586775), (1225, 523068), (1274, 502950), (1300, 492891), (1365, 469420), (1372, 467025), (1437, 445900), (1470, 435890), (1715, 373620), (1820, 352065), (1911, 335300), (1916, 334425), (1950, 328594), (2058, 311350), (2100, 305123), (2275, 281652), (2395, 267540), (2450, 261534), (2548, 251475), (2730, 234710), (2874, 222950), (2940, 217945), (3185, 201180), (3353, 191100), (3430, 186810), (3675, 174356), (3822, 167650), (3900, 164297), (4116, 155675), (4459, 143700), (4550, 140826), (4790, 133770), (4900, 130767), (5145, 124540), (5460, 117355), (5748, 111475), (6227, 102900), (6370, 100590), (6706, 95550), (6825, 93884), (6860, 93405), (7185, 89180), (7350, 87178), (7644, 83825), (8575, 74724), (8918, 71850), (9100, 70413), (9555, 67060), (9580, 66885), (10059, 63700), (10290, 62270), (11975, 53508), (12454, 51450), (12740, 50295), (13377, 47900), (13412, 47775), (13650, 46942), (14370, 44590), (14700, 43589), (15925, 40236), (16765, 38220), (17150, 37362), (17836, 35925), (18681, 34300), (19110, 33530), (20118, 31850), (20580, 31135), (22295, 28740), (23471, 27300), (23950, 26754), (24908, 25725)]