20043140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{607}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 45760512

約数和(自身を除く): 25717372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 607, 635, 1214, 1270, 1651, 2428, 2540, 3035, 3302, 6070, 6604, 7891, 8255, 12140, 15782, 16510, 31564, 33020, 39455, 77089, 78910, 154178, 157820, 308356, 385445, 770890, 1002157, 1541780, 2004314, 4008628, 5010785, 10021570, 20043140]

約数ペア:

[(1, 20043140), (2, 10021570), (4, 5010785), (5, 4008628), (10, 2004314), (13, 1541780), (20, 1002157), (26, 770890), (52, 385445), (65, 308356), (127, 157820), (130, 154178), (254, 78910), (260, 77089), (508, 39455), (607, 33020), (635, 31564), (1214, 16510), (1270, 15782), (1651, 12140), (2428, 8255), (2540, 7891), (3035, 6604), (3302, 6070)]