31988120

素因数分解:

$2^3\times 5^1\times {\mathrm{733}}^1\times {\mathrm{1091}}^1$

素因数の和:1835

約数の個数: 32

約数和(自身を含む): 72137520

約数和(自身を除く): 40149400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 733, 1091, 1466, 2182, 2932, 3665, 4364, 5455, 5864, 7330, 8728, 10910, 14660, 21820, 29320, 43640, 799703, 1599406, 3198812, 3998515, 6397624, 7997030, 15994060, 31988120]

約数ペア:

[(1, 31988120), (2, 15994060), (4, 7997030), (5, 6397624), (8, 3998515), (10, 3198812), (20, 1599406), (40, 799703), (733, 43640), (1091, 29320), (1466, 21820), (2182, 14660), (2932, 10910), (3665, 8728), (4364, 7330), (5455, 5864)]