20199188816

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40724171}}^1$

素因数の和:40724210

約数の個数: 20

約数和(自身を含む): 40398378624

約数和(自身を除く): 20199189808

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40724171, 81448342, 162896684, 325793368, 651586736, 1262449301, 2524898602, 5049797204, 10099594408, 20199188816]

約数ペア:

[(1, 20199188816), (2, 10099594408), (4, 5049797204), (8, 2524898602), (16, 1262449301), (31, 651586736), (62, 325793368), (124, 162896684), (248, 81448342), (496, 40724171)]