20199981490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12263}}^1\times {\mathrm{12671}}^1$

素因数の和:24954

約数の個数: 32

約数和(自身を含む): 39163170816

約数和(自身を除く): 18963189326

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 12263, 12671, 24526, 25342, 61315, 63355, 122630, 126710, 159419, 164723, 318838, 329446, 797095, 823615, 1594190, 1647230, 155384473, 310768946, 776922365, 1553844730, 2019998149, 4039996298, 10099990745, 20199981490]

約数ペア:

[(1, 20199981490), (2, 10099990745), (5, 4039996298), (10, 2019998149), (13, 1553844730), (26, 776922365), (65, 310768946), (130, 155384473), (12263, 1647230), (12671, 1594190), (24526, 823615), (25342, 797095), (61315, 329446), (63355, 318838), (122630, 164723), (126710, 159419)]