68690840

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{7499}}^1$

素因数の和:7739

約数の個数: 32

約数和(自身を含む): 155250000

約数和(自身を除く): 86559160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 4580, 7499, 9160, 14998, 29996, 37495, 59992, 74990, 149980, 299960, 1717271, 3434542, 6869084, 8586355, 13738168, 17172710, 34345420, 68690840]

約数ペア:

[(1, 68690840), (2, 34345420), (4, 17172710), (5, 13738168), (8, 8586355), (10, 6869084), (20, 3434542), (40, 1717271), (229, 299960), (458, 149980), (916, 74990), (1145, 59992), (1832, 37495), (2290, 29996), (4580, 14998), (7499, 9160)]