20403774560

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9809507}}^1$

素因数の和:9809535

約数の個数: 48

約数和(自身を含む): 51911916336

約数和(自身を除く): 31508141776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9809507, 19619014, 39238028, 49047535, 78476056, 98095070, 127523591, 156952112, 196190140, 255047182, 313904224, 392380280, 510094364, 637617955, 784760560, 1020188728, 1275235910, 1569521120, 2040377456, 2550471820, 4080754912, 5100943640, 10201887280, 20403774560]

約数ペア:

[(1, 20403774560), (2, 10201887280), (4, 5100943640), (5, 4080754912), (8, 2550471820), (10, 2040377456), (13, 1569521120), (16, 1275235910), (20, 1020188728), (26, 784760560), (32, 637617955), (40, 510094364), (52, 392380280), (65, 313904224), (80, 255047182), (104, 196190140), (130, 156952112), (160, 127523591), (208, 98095070), (260, 78476056), (416, 49047535), (520, 39238028), (1040, 19619014), (2080, 9809507)]