128235640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{246607}}^1$

素因数の和:246631

約数の個数: 32

約数和(自身を含む): 310726080

約数和(自身を除く): 182490440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 246607, 493214, 986428, 1233035, 1972856, 2466070, 3205891, 4932140, 6411782, 9864280, 12823564, 16029455, 25647128, 32058910, 64117820, 128235640]

約数ペア:

[(1, 128235640), (2, 64117820), (4, 32058910), (5, 25647128), (8, 16029455), (10, 12823564), (13, 9864280), (20, 6411782), (26, 4932140), (40, 3205891), (52, 2466070), (65, 1972856), (104, 1233035), (130, 986428), (260, 493214), (520, 246607)]