31621960

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{4139}}^1$

素因数の和:4341

約数の個数: 32

約数和(自身を含む): 71539200

約数和(自身を除く): 39917240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 4139, 7640, 8278, 16556, 20695, 33112, 41390, 82780, 165560, 790549, 1581098, 3162196, 3952745, 6324392, 7905490, 15810980, 31621960]

約数ペア:

[(1, 31621960), (2, 15810980), (4, 7905490), (5, 6324392), (8, 3952745), (10, 3162196), (20, 1581098), (40, 790549), (191, 165560), (382, 82780), (764, 41390), (955, 33112), (1528, 20695), (1910, 16556), (3820, 8278), (4139, 7640)]