3207880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 8064000

約数和(自身を除く): 4856120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 199, 248, 260, 310, 398, 403, 520, 620, 796, 806, 995, 1240, 1592, 1612, 1990, 2015, 2587, 3224, 3980, 4030, 5174, 6169, 7960, 8060, 10348, 12338, 12935, 16120, 20696, 24676, 25870, 30845, 49352, 51740, 61690, 80197, 103480, 123380, 160394, 246760, 320788, 400985, 641576, 801970, 1603940, 3207880]

約数ペア:

[(1, 3207880), (2, 1603940), (4, 801970), (5, 641576), (8, 400985), (10, 320788), (13, 246760), (20, 160394), (26, 123380), (31, 103480), (40, 80197), (52, 61690), (62, 51740), (65, 49352), (104, 30845), (124, 25870), (130, 24676), (155, 20696), (199, 16120), (248, 12935), (260, 12338), (310, 10348), (398, 8060), (403, 7960), (520, 6169), (620, 5174), (796, 4030), (806, 3980), (995, 3224), (1240, 2587), (1592, 2015), (1612, 1990)]