18468040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11261}}^1$

素因数の和:11313

約数の個数: 32

約数和(自身を含む): 42570360

約数和(自身を除く): 24102320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11261, 22522, 45044, 56305, 90088, 112610, 225220, 450440, 461701, 923402, 1846804, 2308505, 3693608, 4617010, 9234020, 18468040]

約数ペア:

[(1, 18468040), (2, 9234020), (4, 4617010), (5, 3693608), (8, 2308505), (10, 1846804), (20, 923402), (40, 461701), (41, 450440), (82, 225220), (164, 112610), (205, 90088), (328, 56305), (410, 45044), (820, 22522), (1640, 11261)]