247505960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{475973}}^1$

素因数の和:475997

約数の個数: 32

約数和(自身を含む): 599727240

約数和(自身を除く): 352221280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 475973, 951946, 1903892, 2379865, 3807784, 4759730, 6187649, 9519460, 12375298, 19038920, 24750596, 30938245, 49501192, 61876490, 123752980, 247505960]

約数ペア:

[(1, 247505960), (2, 123752980), (4, 61876490), (5, 49501192), (8, 30938245), (10, 24750596), (13, 19038920), (20, 12375298), (26, 9519460), (40, 6187649), (52, 4759730), (65, 3807784), (104, 2379865), (130, 1903892), (260, 951946), (520, 475973)]