20550147280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19759757}}^1$

素因数の和:19759783

約数の個数: 40

約数和(自身を含む): 51454409832

約数和(自身を除く): 30904262552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19759757, 39519514, 79039028, 98798785, 158078056, 197597570, 256876841, 316156112, 395195140, 513753682, 790390280, 1027507364, 1284384205, 1580780560, 2055014728, 2568768410, 4110029456, 5137536820, 10275073640, 20550147280]

約数ペア:

[(1, 20550147280), (2, 10275073640), (4, 5137536820), (5, 4110029456), (8, 2568768410), (10, 2055014728), (13, 1580780560), (16, 1284384205), (20, 1027507364), (26, 790390280), (40, 513753682), (52, 395195140), (65, 316156112), (80, 256876841), (104, 197597570), (130, 158078056), (208, 98798785), (260, 79039028), (520, 39519514), (1040, 19759757)]