2861927880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{21701}}^1$

素因数の和:21879

約数の個数: 128

約数和(自身を含む): 9875278080

約数和(自身を除く): 7013350200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 280, 314, 420, 471, 628, 785, 840, 942, 1099, 1256, 1570, 1884, 2198, 2355, 3140, 3297, 3768, 4396, 4710, 5495, 6280, 6594, 8792, 9420, 10990, 13188, 16485, 18840, 21701, 21980, 26376, 32970, 43402, 43960, 65103, 65940, 86804, 108505, 130206, 131880, 151907, 173608, 217010, 260412, 303814, 325515, 434020, 455721, 520824, 607628, 651030, 759535, 868040, 911442, 1215256, 1302060, 1519070, 1822884, 2278605, 2604120, 3038140, 3407057, 3645768, 4557210, 6076280, 6814114, 9114420, 10221171, 13628228, 17035285, 18228840, 20442342, 23849399, 27256456, 34070570, 40884684, 47698798, 51105855, 68141140, 71548197, 81769368, 95397596, 102211710, 119246995, 136282280, 143096394, 190795192, 204423420, 238493990, 286192788, 357740985, 408846840, 476987980, 572385576, 715481970, 953975960, 1430963940, 2861927880]

約数ペア:

[(1, 2861927880), (2, 1430963940), (3, 953975960), (4, 715481970), (5, 572385576), (6, 476987980), (7, 408846840), (8, 357740985), (10, 286192788), (12, 238493990), (14, 204423420), (15, 190795192), (20, 143096394), (21, 136282280), (24, 119246995), (28, 102211710), (30, 95397596), (35, 81769368), (40, 71548197), (42, 68141140), (56, 51105855), (60, 47698798), (70, 40884684), (84, 34070570), (105, 27256456), (120, 23849399), (140, 20442342), (157, 18228840), (168, 17035285), (210, 13628228), (280, 10221171), (314, 9114420), (420, 6814114), (471, 6076280), (628, 4557210), (785, 3645768), (840, 3407057), (942, 3038140), (1099, 2604120), (1256, 2278605), (1570, 1822884), (1884, 1519070), (2198, 1302060), (2355, 1215256), (3140, 911442), (3297, 868040), (3768, 759535), (4396, 651030), (4710, 607628), (5495, 520824), (6280, 455721), (6594, 434020), (8792, 325515), (9420, 303814), (10990, 260412), (13188, 217010), (16485, 173608), (18840, 151907), (21701, 131880), (21980, 130206), (26376, 108505), (32970, 86804), (43402, 65940), (43960, 65103)]