17749880

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{971}}^1$

素因数の和:1439

約数の個数: 32

約数和(自身を含む): 40065840

約数和(自身を除く): 22315960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 971, 1828, 1942, 2285, 3656, 3884, 4570, 4855, 7768, 9140, 9710, 18280, 19420, 38840, 443747, 887494, 1774988, 2218735, 3549976, 4437470, 8874940, 17749880]

約数ペア:

[(1, 17749880), (2, 8874940), (4, 4437470), (5, 3549976), (8, 2218735), (10, 1774988), (20, 887494), (40, 443747), (457, 38840), (914, 19420), (971, 18280), (1828, 9710), (1942, 9140), (2285, 7768), (3656, 4855), (3884, 4570)]