987720990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{6971}}^1\times {\mathrm{4723}}^1$

素因数の和:11704

約数の個数: 32

約数和(自身を含む): 2371372416

約数和(自身を除く): 1383651426

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 4723, 6971, 9446, 13942, 14169, 20913, 23615, 28338, 34855, 41826, 47230, 69710, 70845, 104565, 141690, 209130, 32924033, 65848066, 98772099, 164620165, 197544198, 329240330, 493860495, 987720990]

約数ペア:

[(1, 987720990), (2, 493860495), (3, 329240330), (5, 197544198), (6, 164620165), (10, 98772099), (15, 65848066), (30, 32924033), (4723, 209130), (6971, 141690), (9446, 104565), (13942, 70845), (14169, 69710), (20913, 47230), (23615, 41826), (28338, 34855)]