20637560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17791}}^1$

素因数の和:17831

約数の個数: 32

約数和(自身を含む): 48038400

約数和(自身を除く): 27400840

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17791, 35582, 71164, 88955, 142328, 177910, 355820, 515939, 711640, 1031878, 2063756, 2579695, 4127512, 5159390, 10318780, 20637560]

約数ペア:

[(1, 20637560), (2, 10318780), (4, 5159390), (5, 4127512), (8, 2579695), (10, 2063756), (20, 1031878), (29, 711640), (40, 515939), (58, 355820), (116, 177910), (145, 142328), (232, 88955), (290, 71164), (580, 35582), (1160, 17791)]