638131400

素因数分解:

$2^3\times 5^2\times {\mathrm{229}}^1\times {\mathrm{13933}}^1$

素因数の和:14178

約数の個数: 48

約数和(自身を含む): 1490241300

約数和(自身を除く): 852109900

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 229, 458, 916, 1145, 1832, 2290, 4580, 5725, 9160, 11450, 13933, 22900, 27866, 45800, 55732, 69665, 111464, 139330, 278660, 348325, 557320, 696650, 1393300, 2786600, 3190657, 6381314, 12762628, 15953285, 25525256, 31906570, 63813140, 79766425, 127626280, 159532850, 319065700, 638131400]

約数ペア:

[(1, 638131400), (2, 319065700), (4, 159532850), (5, 127626280), (8, 79766425), (10, 63813140), (20, 31906570), (25, 25525256), (40, 15953285), (50, 12762628), (100, 6381314), (200, 3190657), (229, 2786600), (458, 1393300), (916, 696650), (1145, 557320), (1832, 348325), (2290, 278660), (4580, 139330), (5725, 111464), (9160, 69665), (11450, 55732), (13933, 45800), (22900, 27866)]