1397397620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{40693}}^1$

素因数の和:40820

約数の個数: 48

約数和(自身を含む): 3137995728

約数和(自身を除く): 1740598108

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 404, 505, 1010, 1717, 2020, 3434, 6868, 8585, 17170, 34340, 40693, 81386, 162772, 203465, 406930, 691781, 813860, 1383562, 2767124, 3458905, 4109993, 6917810, 8219986, 13835620, 16439972, 20549965, 41099930, 69869881, 82199860, 139739762, 279479524, 349349405, 698698810, 1397397620]

約数ペア:

[(1, 1397397620), (2, 698698810), (4, 349349405), (5, 279479524), (10, 139739762), (17, 82199860), (20, 69869881), (34, 41099930), (68, 20549965), (85, 16439972), (101, 13835620), (170, 8219986), (202, 6917810), (340, 4109993), (404, 3458905), (505, 2767124), (1010, 1383562), (1717, 813860), (2020, 691781), (3434, 406930), (6868, 203465), (8585, 162772), (17170, 81386), (34340, 40693)]