20119340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^2\times {\mathrm{127}}^1$

素因数の和:314

約数の個数: 36

約数和(自身を含む): 43067136

約数和(自身を除く): 22947796

約数列:

[1, 2, 4, 5, 10, 20, 89, 127, 178, 254, 356, 445, 508, 635, 890, 1270, 1780, 2540, 7921, 11303, 15842, 22606, 31684, 39605, 45212, 56515, 79210, 113030, 158420, 226060, 1005967, 2011934, 4023868, 5029835, 10059670, 20119340]

約数ペア:

[(1, 20119340), (2, 10059670), (4, 5029835), (5, 4023868), (10, 2011934), (20, 1005967), (89, 226060), (127, 158420), (178, 113030), (254, 79210), (356, 56515), (445, 45212), (508, 39605), (635, 31684), (890, 22606), (1270, 15842), (1780, 11303), (2540, 7921)]