71690440

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{7499}}^1$

素因数の和:7749

約数の個数: 32

約数和(自身を含む): 162000000

約数和(自身を除く): 90309560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 7499, 9560, 14998, 29996, 37495, 59992, 74990, 149980, 299960, 1792261, 3584522, 7169044, 8961305, 14338088, 17922610, 35845220, 71690440]

約数ペア:

[(1, 71690440), (2, 35845220), (4, 17922610), (5, 14338088), (8, 8961305), (10, 7169044), (20, 3584522), (40, 1792261), (239, 299960), (478, 149980), (956, 74990), (1195, 59992), (1912, 37495), (2390, 29996), (4780, 14998), (7499, 9560)]