20197360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14851}}^1$

素因数の和:14881

約数の個数: 40

約数和(自身を含む): 49724496

約数和(自身を除く): 29527136

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14851, 29702, 59404, 74255, 118808, 148510, 237616, 252467, 297020, 504934, 594040, 1009868, 1188080, 1262335, 2019736, 2524670, 4039472, 5049340, 10098680, 20197360]

約数ペア:

[(1, 20197360), (2, 10098680), (4, 5049340), (5, 4039472), (8, 2524670), (10, 2019736), (16, 1262335), (17, 1188080), (20, 1009868), (34, 594040), (40, 504934), (68, 297020), (80, 252467), (85, 237616), (136, 148510), (170, 118808), (272, 74255), (340, 59404), (680, 29702), (1360, 14851)]