263513510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{12911}}^1$

素因数の和:13088

約数の個数: 32

約数和(自身を含む): 514104192

約数和(自身を除く): 250590682

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 785, 1570, 2041, 4082, 10205, 12911, 20410, 25822, 64555, 129110, 167843, 335686, 839215, 1678430, 2027027, 4054054, 10135135, 20270270, 26351351, 52702702, 131756755, 263513510]

約数ペア:

[(1, 263513510), (2, 131756755), (5, 52702702), (10, 26351351), (13, 20270270), (26, 10135135), (65, 4054054), (130, 2027027), (157, 1678430), (314, 839215), (785, 335686), (1570, 167843), (2041, 129110), (4082, 64555), (10205, 25822), (12911, 20410)]