40405340

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 87091200

約数和(自身を除く): 46685860

約数列:

[1, 2, 4, 5, 10, 20, 79, 107, 158, 214, 239, 316, 395, 428, 478, 535, 790, 956, 1070, 1195, 1580, 2140, 2390, 4780, 8453, 16906, 18881, 25573, 33812, 37762, 42265, 51146, 75524, 84530, 94405, 102292, 127865, 169060, 188810, 255730, 377620, 511460, 2020267, 4040534, 8081068, 10101335, 20202670, 40405340]

約数ペア:

[(1, 40405340), (2, 20202670), (4, 10101335), (5, 8081068), (10, 4040534), (20, 2020267), (79, 511460), (107, 377620), (158, 255730), (214, 188810), (239, 169060), (316, 127865), (395, 102292), (428, 94405), (478, 84530), (535, 75524), (790, 51146), (956, 42265), (1070, 37762), (1195, 33812), (1580, 25573), (2140, 18881), (2390, 16906), (4780, 8453)]