331380920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{637271}}^1$

素因数の和:637295

約数の個数: 32

約数和(自身を含む): 802962720

約数和(自身を除く): 471581800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 637271, 1274542, 2549084, 3186355, 5098168, 6372710, 8284523, 12745420, 16569046, 25490840, 33138092, 41422615, 66276184, 82845230, 165690460, 331380920]

約数ペア:

[(1, 331380920), (2, 165690460), (4, 82845230), (5, 66276184), (8, 41422615), (10, 33138092), (13, 25490840), (20, 16569046), (26, 12745420), (40, 8284523), (52, 6372710), (65, 5098168), (104, 3186355), (130, 2549084), (260, 1274542), (520, 637271)]