28427240

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1249}}^1$

素因数の和:1829

約数の個数: 32

約数和(自身を含む): 64125000

約数和(自身を除く): 35697760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 1138, 1249, 2276, 2498, 2845, 4552, 4996, 5690, 6245, 9992, 11380, 12490, 22760, 24980, 49960, 710681, 1421362, 2842724, 3553405, 5685448, 7106810, 14213620, 28427240]

約数ペア:

[(1, 28427240), (2, 14213620), (4, 7106810), (5, 5685448), (8, 3553405), (10, 2842724), (20, 1421362), (40, 710681), (569, 49960), (1138, 24980), (1249, 22760), (2276, 12490), (2498, 11380), (2845, 9992), (4552, 6245), (4996, 5690)]