71398340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{274609}}^1$

素因数の和:274631

約数の個数: 24

約数和(自身を含む): 161470680

約数和(自身を除く): 90072340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 274609, 549218, 1098436, 1373045, 2746090, 3569917, 5492180, 7139834, 14279668, 17849585, 35699170, 71398340]

約数ペア:

[(1, 71398340), (2, 35699170), (4, 17849585), (5, 14279668), (10, 7139834), (13, 5492180), (20, 3569917), (26, 2746090), (52, 1373045), (65, 1098436), (130, 549218), (260, 274609)]