19503640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37507}}^1$

素因数の和:37531

約数の個数: 32

約数和(自身を含む): 47260080

約数和(自身を除く): 27756440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37507, 75014, 150028, 187535, 300056, 375070, 487591, 750140, 975182, 1500280, 1950364, 2437955, 3900728, 4875910, 9751820, 19503640]

約数ペア:

[(1, 19503640), (2, 9751820), (4, 4875910), (5, 3900728), (8, 2437955), (10, 1950364), (13, 1500280), (20, 975182), (26, 750140), (40, 487591), (52, 375070), (65, 300056), (104, 187535), (130, 150028), (260, 75014), (520, 37507)]