31991080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72707}}^1$

素因数の和:72729

約数の個数: 32

約数和(自身を含む): 78524640

約数和(自身を除く): 46533560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 72707, 145414, 290828, 363535, 581656, 727070, 799777, 1454140, 1599554, 2908280, 3199108, 3998885, 6398216, 7997770, 15995540, 31991080]

約数ペア:

[(1, 31991080), (2, 15995540), (4, 7997770), (5, 6398216), (8, 3998885), (10, 3199108), (11, 2908280), (20, 1599554), (22, 1454140), (40, 799777), (44, 727070), (55, 581656), (88, 363535), (110, 290828), (220, 145414), (440, 72707)]