18079975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{569}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 23748480

約数和(自身を除く): 5668505

約数列:

[1, 5, 25, 31, 41, 155, 205, 569, 775, 1025, 1271, 2845, 6355, 14225, 17639, 23329, 31775, 88195, 116645, 440975, 583225, 723199, 3615995, 18079975]

約数ペア:

[(1, 18079975), (5, 3615995), (25, 723199), (31, 583225), (41, 440975), (155, 116645), (205, 88195), (569, 31775), (775, 23329), (1025, 17639), (1271, 14225), (2845, 6355)]