1988045320

素因数分解:

$2^3\times 5^1\times {\mathrm{2551}}^1\times {\mathrm{19483}}^1$

素因数の和:22045

約数の個数: 32

約数和(自身を含む): 4475085120

約数和(自身を除く): 2487039800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2551, 5102, 10204, 12755, 19483, 20408, 25510, 38966, 51020, 77932, 97415, 102040, 155864, 194830, 389660, 779320, 49701133, 99402266, 198804532, 248505665, 397609064, 497011330, 994022660, 1988045320]

約数ペア:

[(1, 1988045320), (2, 994022660), (4, 497011330), (5, 397609064), (8, 248505665), (10, 198804532), (20, 99402266), (40, 49701133), (2551, 779320), (5102, 389660), (10204, 194830), (12755, 155864), (19483, 102040), (20408, 97415), (25510, 77932), (38966, 51020)]