1557420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 4421088

約数和(自身を除く): 2863668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 257, 303, 404, 505, 514, 606, 771, 1010, 1028, 1212, 1285, 1515, 1542, 2020, 2570, 3030, 3084, 3855, 5140, 6060, 7710, 15420, 25957, 51914, 77871, 103828, 129785, 155742, 259570, 311484, 389355, 519140, 778710, 1557420]

約数ペア:

[(1, 1557420), (2, 778710), (3, 519140), (4, 389355), (5, 311484), (6, 259570), (10, 155742), (12, 129785), (15, 103828), (20, 77871), (30, 51914), (60, 25957), (101, 15420), (202, 7710), (257, 6060), (303, 5140), (404, 3855), (505, 3084), (514, 3030), (606, 2570), (771, 2020), (1010, 1542), (1028, 1515), (1212, 1285)]