129025580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{19973}}^1$

素因数の和:20018

約数の個数: 48

約数和(自身を含む): 302006880

約数和(自身を除く): 172981300

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 19973, 39946, 79892, 99865, 199730, 339541, 379487, 399460, 679082, 758974, 1358164, 1517948, 1697705, 1897435, 3395410, 3794870, 6451279, 6790820, 7589740, 12902558, 25805116, 32256395, 64512790, 129025580]

約数ペア:

[(1, 129025580), (2, 64512790), (4, 32256395), (5, 25805116), (10, 12902558), (17, 7589740), (19, 6790820), (20, 6451279), (34, 3794870), (38, 3395410), (68, 1897435), (76, 1697705), (85, 1517948), (95, 1358164), (170, 758974), (190, 679082), (323, 399460), (340, 379487), (380, 339541), (646, 199730), (1292, 99865), (1615, 79892), (3230, 39946), (6460, 19973)]