1603940

素因数分解:

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

素因数の和:252

約数の個数: 48

約数和(自身を含む): 3763200

約数和(自身を除く): 2159260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 199, 260, 310, 398, 403, 620, 796, 806, 995, 1612, 1990, 2015, 2587, 3980, 4030, 5174, 6169, 8060, 10348, 12338, 12935, 24676, 25870, 30845, 51740, 61690, 80197, 123380, 160394, 320788, 400985, 801970, 1603940]

約数ペア:

[(1, 1603940), (2, 801970), (4, 400985), (5, 320788), (10, 160394), (13, 123380), (20, 80197), (26, 61690), (31, 51740), (52, 30845), (62, 25870), (65, 24676), (124, 12935), (130, 12338), (155, 10348), (199, 8060), (260, 6169), (310, 5174), (398, 4030), (403, 3980), (620, 2587), (796, 2015), (806, 1990), (995, 1612)]