28813160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17569}}^1$

素因数の和:17621

約数の個数: 32

約数和(自身を含む): 66414600

約数和(自身を除く): 37601440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 17569, 35138, 70276, 87845, 140552, 175690, 351380, 702760, 720329, 1440658, 2881316, 3601645, 5762632, 7203290, 14406580, 28813160]

約数ペア:

[(1, 28813160), (2, 14406580), (4, 7203290), (5, 5762632), (8, 3601645), (10, 2881316), (20, 1440658), (40, 720329), (41, 702760), (82, 351380), (164, 175690), (205, 140552), (328, 87845), (410, 70276), (820, 35138), (1640, 17569)]