31386760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{457}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 75679920

約数和(自身を除く): 44293160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 340, 404, 457, 505, 680, 808, 914, 1010, 1717, 1828, 2020, 2285, 3434, 3656, 4040, 4570, 6868, 7769, 8585, 9140, 13736, 15538, 17170, 18280, 31076, 34340, 38845, 46157, 62152, 68680, 77690, 92314, 155380, 184628, 230785, 310760, 369256, 461570, 784669, 923140, 1569338, 1846280, 3138676, 3923345, 6277352, 7846690, 15693380, 31386760]

約数ペア:

[(1, 31386760), (2, 15693380), (4, 7846690), (5, 6277352), (8, 3923345), (10, 3138676), (17, 1846280), (20, 1569338), (34, 923140), (40, 784669), (68, 461570), (85, 369256), (101, 310760), (136, 230785), (170, 184628), (202, 155380), (340, 92314), (404, 77690), (457, 68680), (505, 62152), (680, 46157), (808, 38845), (914, 34340), (1010, 31076), (1717, 18280), (1828, 17170), (2020, 15538), (2285, 13736), (3434, 9140), (3656, 8585), (4040, 7769), (4570, 6868)]