490697080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{285289}}^1$

素因数の和:285343

約数の個数: 32

約数和(自身を含む): 1129748400

約数和(自身を除く): 639051320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 285289, 570578, 1141156, 1426445, 2282312, 2852890, 5705780, 11411560, 12267427, 24534854, 49069708, 61337135, 98139416, 122674270, 245348540, 490697080]

約数ペア:

[(1, 490697080), (2, 245348540), (4, 122674270), (5, 98139416), (8, 61337135), (10, 49069708), (20, 24534854), (40, 12267427), (43, 11411560), (86, 5705780), (172, 2852890), (215, 2282312), (344, 1426445), (430, 1141156), (860, 570578), (1720, 285289)]