90510920

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2797}}^1$

素因数の和:3617

約数の個数: 32

約数和(自身を含む): 203974200

約数和(自身を除く): 113463280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 2797, 3236, 4045, 5594, 6472, 8090, 11188, 13985, 16180, 22376, 27970, 32360, 55940, 111880, 2262773, 4525546, 9051092, 11313865, 18102184, 22627730, 45255460, 90510920]

約数ペア:

[(1, 90510920), (2, 45255460), (4, 22627730), (5, 18102184), (8, 11313865), (10, 9051092), (20, 4525546), (40, 2262773), (809, 111880), (1618, 55940), (2797, 32360), (3236, 27970), (4045, 22376), (5594, 16180), (6472, 13985), (8090, 11188)]