31796560

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1663}}^1$

素因数の和:1915

約数の個数: 40

約数和(自身を含む): 74280960

約数和(自身を除く): 42484400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1663, 1912, 2390, 3326, 3824, 4780, 6652, 8315, 9560, 13304, 16630, 19120, 26608, 33260, 66520, 133040, 397457, 794914, 1589828, 1987285, 3179656, 3974570, 6359312, 7949140, 15898280, 31796560]

約数ペア:

[(1, 31796560), (2, 15898280), (4, 7949140), (5, 6359312), (8, 3974570), (10, 3179656), (16, 1987285), (20, 1589828), (40, 794914), (80, 397457), (239, 133040), (478, 66520), (956, 33260), (1195, 26608), (1663, 19120), (1912, 16630), (2390, 13304), (3326, 9560), (3824, 8315), (4780, 6652)]