19711640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37907}}^1$

素因数の和:37931

約数の個数: 32

約数和(自身を含む): 47764080

約数和(自身を除く): 28052440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37907, 75814, 151628, 189535, 303256, 379070, 492791, 758140, 985582, 1516280, 1971164, 2463955, 3942328, 4927910, 9855820, 19711640]

約数ペア:

[(1, 19711640), (2, 9855820), (4, 4927910), (5, 3942328), (8, 2463955), (10, 1971164), (13, 1516280), (20, 985582), (26, 758140), (40, 492791), (52, 379070), (65, 303256), (104, 189535), (130, 151628), (260, 75814), (520, 37907)]