28727560

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{9091}}^1$

素因数の和:9181

約数の個数: 32

約数和(自身を含む): 65462400

約数和(自身を除く): 36734840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 9091, 18182, 36364, 45455, 72728, 90910, 181820, 363640, 718189, 1436378, 2872756, 3590945, 5745512, 7181890, 14363780, 28727560]

約数ペア:

[(1, 28727560), (2, 14363780), (4, 7181890), (5, 5745512), (8, 3590945), (10, 2872756), (20, 1436378), (40, 718189), (79, 363640), (158, 181820), (316, 90910), (395, 72728), (632, 45455), (790, 36364), (1580, 18182), (3160, 9091)]