20660950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 20586410

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 109, 170, 218, 223, 425, 446, 545, 850, 1090, 1115, 1853, 2230, 2725, 3706, 3791, 5450, 5575, 7582, 9265, 11150, 18530, 18955, 24307, 37910, 46325, 48614, 92650, 94775, 121535, 189550, 243070, 413219, 607675, 826438, 1215350, 2066095, 4132190, 10330475, 20660950]

約数ペア:

[(1, 20660950), (2, 10330475), (5, 4132190), (10, 2066095), (17, 1215350), (25, 826438), (34, 607675), (50, 413219), (85, 243070), (109, 189550), (170, 121535), (218, 94775), (223, 92650), (425, 48614), (446, 46325), (545, 37910), (850, 24307), (1090, 18955), (1115, 18530), (1853, 11150), (2230, 9265), (2725, 7582), (3706, 5575), (3791, 5450)]