31162960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9059}}^1$

素因数の和:9115

約数の個数: 40

約数和(自身を含む): 74147040

約数和(自身を除く): 42984080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 9059, 18118, 36236, 45295, 72472, 90590, 144944, 181180, 362360, 389537, 724720, 779074, 1558148, 1947685, 3116296, 3895370, 6232592, 7790740, 15581480, 31162960]

約数ペア:

[(1, 31162960), (2, 15581480), (4, 7790740), (5, 6232592), (8, 3895370), (10, 3116296), (16, 1947685), (20, 1558148), (40, 779074), (43, 724720), (80, 389537), (86, 362360), (172, 181180), (215, 144944), (344, 90590), (430, 72472), (688, 45295), (860, 36236), (1720, 18118), (3440, 9059)]