31125880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21031}}^1$

素因数の和:21079

約数の個数: 32

約数和(自身を含む): 71929440

約数和(自身を除く): 40803560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 21031, 42062, 84124, 105155, 168248, 210310, 420620, 778147, 841240, 1556294, 3112588, 3890735, 6225176, 7781470, 15562940, 31125880]

約数ペア:

[(1, 31125880), (2, 15562940), (4, 7781470), (5, 6225176), (8, 3890735), (10, 3112588), (20, 1556294), (37, 841240), (40, 778147), (74, 420620), (148, 210310), (185, 168248), (296, 105155), (370, 84124), (740, 42062), (1480, 21031)]