31373480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11047}}^1$

素因数の和:11129

約数の個数: 32

約数和(自身を含む): 71591040

約数和(自身を除く): 40217560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 11047, 22094, 44188, 55235, 88376, 110470, 220940, 441880, 784337, 1568674, 3137348, 3921685, 6274696, 7843370, 15686740, 31373480]

約数ペア:

[(1, 31373480), (2, 15686740), (4, 7843370), (5, 6274696), (8, 3921685), (10, 3137348), (20, 1568674), (40, 784337), (71, 441880), (142, 220940), (284, 110470), (355, 88376), (568, 55235), (710, 44188), (1420, 22094), (2840, 11047)]