801970

素因数分解:

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

素因数の和:250

約数の個数: 32

約数和(自身を含む): 1612800

約数和(自身を除く): 810830

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 199, 310, 398, 403, 806, 995, 1990, 2015, 2587, 4030, 5174, 6169, 12338, 12935, 25870, 30845, 61690, 80197, 160394, 400985, 801970]

約数ペア:

[(1, 801970), (2, 400985), (5, 160394), (10, 80197), (13, 61690), (26, 30845), (31, 25870), (62, 12935), (65, 12338), (130, 6169), (155, 5174), (199, 4030), (310, 2587), (398, 2015), (403, 1990), (806, 995)]