19977340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{317}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 44235072

約数和(自身を除く): 24257732

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 137, 230, 274, 317, 460, 548, 634, 685, 1268, 1370, 1585, 2740, 3151, 3170, 6302, 6340, 7291, 12604, 14582, 15755, 29164, 31510, 36455, 43429, 63020, 72910, 86858, 145820, 173716, 217145, 434290, 868580, 998867, 1997734, 3995468, 4994335, 9988670, 19977340]

約数ペア:

[(1, 19977340), (2, 9988670), (4, 4994335), (5, 3995468), (10, 1997734), (20, 998867), (23, 868580), (46, 434290), (92, 217145), (115, 173716), (137, 145820), (230, 86858), (274, 72910), (317, 63020), (460, 43429), (548, 36455), (634, 31510), (685, 29164), (1268, 15755), (1370, 14582), (1585, 12604), (2740, 7291), (3151, 6340), (3170, 6302)]