18307380

素因数分解:

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

素因数の和:518

約数の個数: 144

約数和(自身を含む): 64350720

約数和(自身を除く): 46043340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 479, 490, 546, 588, 637, 735, 780, 910, 958, 980, 1092, 1274, 1365, 1437, 1470, 1820, 1911, 1916, 2395, 2548, 2730, 2874, 2940, 3185, 3353, 3822, 4790, 5460, 5748, 6227, 6370, 6706, 7185, 7644, 9555, 9580, 10059, 12454, 12740, 13412, 14370, 16765, 18681, 19110, 20118, 23471, 24908, 28740, 31135, 33530, 37362, 38220, 40236, 43589, 46942, 50295, 62270, 67060, 70413, 74724, 87178, 93405, 93884, 100590, 117355, 124540, 130767, 140826, 174356, 186810, 201180, 217945, 234710, 261534, 281652, 305123, 352065, 373620, 435890, 469420, 523068, 610246, 653835, 704130, 871780, 915369, 1220492, 1307670, 1408260, 1525615, 1830738, 2615340, 3051230, 3661476, 4576845, 6102460, 9153690, 18307380]

約数ペア:

[(1, 18307380), (2, 9153690), (3, 6102460), (4, 4576845), (5, 3661476), (6, 3051230), (7, 2615340), (10, 1830738), (12, 1525615), (13, 1408260), (14, 1307670), (15, 1220492), (20, 915369), (21, 871780), (26, 704130), (28, 653835), (30, 610246), (35, 523068), (39, 469420), (42, 435890), (49, 373620), (52, 352065), (60, 305123), (65, 281652), (70, 261534), (78, 234710), (84, 217945), (91, 201180), (98, 186810), (105, 174356), (130, 140826), (140, 130767), (147, 124540), (156, 117355), (182, 100590), (195, 93884), (196, 93405), (210, 87178), (245, 74724), (260, 70413), (273, 67060), (294, 62270), (364, 50295), (390, 46942), (420, 43589), (455, 40236), (479, 38220), (490, 37362), (546, 33530), (588, 31135), (637, 28740), (735, 24908), (780, 23471), (910, 20118), (958, 19110), (980, 18681), (1092, 16765), (1274, 14370), (1365, 13412), (1437, 12740), (1470, 12454), (1820, 10059), (1911, 9580), (1916, 9555), (2395, 7644), (2548, 7185), (2730, 6706), (2874, 6370), (2940, 6227), (3185, 5748), (3353, 5460), (3822, 4790)]