8707020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{20731}}^1$

素因数の和:20750

約数の個数: 48

約数和(自身を含む): 27863808

約数和(自身を除く): 19156788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 20731, 41462, 62193, 82924, 103655, 124386, 145117, 207310, 248772, 290234, 310965, 414620, 435351, 580468, 621930, 725585, 870702, 1243860, 1451170, 1741404, 2176755, 2902340, 4353510, 8707020]

約数ペア:

[(1, 8707020), (2, 4353510), (3, 2902340), (4, 2176755), (5, 1741404), (6, 1451170), (7, 1243860), (10, 870702), (12, 725585), (14, 621930), (15, 580468), (20, 435351), (21, 414620), (28, 310965), (30, 290234), (35, 248772), (42, 207310), (60, 145117), (70, 124386), (84, 103655), (105, 82924), (140, 62193), (210, 41462), (420, 20731)]