90765680

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{21407}}^1$

素因数の和:21473

約数の個数: 40

約数和(自身を含む): 215021952

約数和(自身を除く): 124256272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 21407, 42814, 85628, 107035, 171256, 214070, 342512, 428140, 856280, 1134571, 1712560, 2269142, 4538284, 5672855, 9076568, 11345710, 18153136, 22691420, 45382840, 90765680]

約数ペア:

[(1, 90765680), (2, 45382840), (4, 22691420), (5, 18153136), (8, 11345710), (10, 9076568), (16, 5672855), (20, 4538284), (40, 2269142), (53, 1712560), (80, 1134571), (106, 856280), (212, 428140), (265, 342512), (424, 214070), (530, 171256), (848, 107035), (1060, 85628), (2120, 42814), (4240, 21407)]