639609840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:568

約数の個数: 240

約数和(自身を含む): 2252105856

約数和(自身を除く): 1612496016

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 41, 45, 47, 48, 60, 72, 80, 82, 90, 94, 120, 123, 141, 144, 164, 180, 188, 205, 235, 240, 246, 282, 328, 360, 369, 376, 410, 423, 461, 470, 492, 564, 615, 656, 705, 720, 738, 752, 820, 846, 922, 940, 984, 1128, 1230, 1383, 1410, 1476, 1640, 1692, 1844, 1845, 1880, 1927, 1968, 2115, 2256, 2305, 2460, 2766, 2820, 2952, 3280, 3384, 3688, 3690, 3760, 3854, 4149, 4230, 4610, 4920, 5532, 5640, 5781, 5904, 6768, 6915, 7376, 7380, 7708, 8298, 8460, 9220, 9635, 9840, 11064, 11280, 11562, 13830, 14760, 15416, 16596, 16920, 17343, 18440, 18901, 19270, 20745, 21667, 22128, 23124, 27660, 28905, 29520, 30832, 33192, 33840, 34686, 36880, 37802, 38540, 41490, 43334, 46248, 55320, 56703, 57810, 65001, 66384, 69372, 75604, 77080, 82980, 86668, 86715, 92496, 94505, 108335, 110640, 113406, 115620, 130002, 138744, 151208, 154160, 165960, 170109, 173336, 173430, 189010, 195003, 216670, 226812, 231240, 260004, 277488, 283515, 302416, 325005, 331920, 340218, 346672, 346860, 378020, 390006, 433340, 453624, 462480, 520008, 567030, 650010, 680436, 693720, 756040, 780012, 850545, 866680, 888347, 907248, 975015, 1040016, 1134060, 1300020, 1360872, 1387440, 1512080, 1560024, 1701090, 1733360, 1776694, 1950030, 2268120, 2600040, 2665041, 2721744, 3120048, 3402180, 3553388, 3900060, 4441735, 4536240, 5200080, 5330082, 6804360, 7106776, 7800120, 7995123, 8883470, 10660164, 13325205, 13608720, 14213552, 15600240, 15990246, 17766940, 21320328, 26650410, 31980492, 35533880, 39975615, 42640656, 53300820, 63960984, 71067760, 79951230, 106601640, 127921968, 159902460, 213203280, 319804920, 639609840]

約数ペア:

[(1, 639609840), (2, 319804920), (3, 213203280), (4, 159902460), (5, 127921968), (6, 106601640), (8, 79951230), (9, 71067760), (10, 63960984), (12, 53300820), (15, 42640656), (16, 39975615), (18, 35533880), (20, 31980492), (24, 26650410), (30, 21320328), (36, 17766940), (40, 15990246), (41, 15600240), (45, 14213552), (47, 13608720), (48, 13325205), (60, 10660164), (72, 8883470), (80, 7995123), (82, 7800120), (90, 7106776), (94, 6804360), (120, 5330082), (123, 5200080), (141, 4536240), (144, 4441735), (164, 3900060), (180, 3553388), (188, 3402180), (205, 3120048), (235, 2721744), (240, 2665041), (246, 2600040), (282, 2268120), (328, 1950030), (360, 1776694), (369, 1733360), (376, 1701090), (410, 1560024), (423, 1512080), (461, 1387440), (470, 1360872), (492, 1300020), (564, 1134060), (615, 1040016), (656, 975015), (705, 907248), (720, 888347), (738, 866680), (752, 850545), (820, 780012), (846, 756040), (922, 693720), (940, 680436), (984, 650010), (1128, 567030), (1230, 520008), (1383, 462480), (1410, 453624), (1476, 433340), (1640, 390006), (1692, 378020), (1844, 346860), (1845, 346672), (1880, 340218), (1927, 331920), (1968, 325005), (2115, 302416), (2256, 283515), (2305, 277488), (2460, 260004), (2766, 231240), (2820, 226812), (2952, 216670), (3280, 195003), (3384, 189010), (3688, 173430), (3690, 173336), (3760, 170109), (3854, 165960), (4149, 154160), (4230, 151208), (4610, 138744), (4920, 130002), (5532, 115620), (5640, 113406), (5781, 110640), (5904, 108335), (6768, 94505), (6915, 92496), (7376, 86715), (7380, 86668), (7708, 82980), (8298, 77080), (8460, 75604), (9220, 69372), (9635, 66384), (9840, 65001), (11064, 57810), (11280, 56703), (11562, 55320), (13830, 46248), (14760, 43334), (15416, 41490), (16596, 38540), (16920, 37802), (17343, 36880), (18440, 34686), (18901, 33840), (19270, 33192), (20745, 30832), (21667, 29520), (22128, 28905), (23124, 27660)]