20793419140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{747427}}^1$

素因数の和:747556

約数の個数: 48

約数和(自身を含む): 47464667712

約数和(自身を除く): 26671248572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 428, 535, 1070, 1391, 2140, 2782, 5564, 6955, 13910, 27820, 747427, 1494854, 2989708, 3737135, 7474270, 9716551, 14948540, 19433102, 38866204, 48582755, 79974689, 97165510, 159949378, 194331020, 319898756, 399873445, 799746890, 1039670957, 1599493780, 2079341914, 4158683828, 5198354785, 10396709570, 20793419140]

約数ペア:

[(1, 20793419140), (2, 10396709570), (4, 5198354785), (5, 4158683828), (10, 2079341914), (13, 1599493780), (20, 1039670957), (26, 799746890), (52, 399873445), (65, 319898756), (107, 194331020), (130, 159949378), (214, 97165510), (260, 79974689), (428, 48582755), (535, 38866204), (1070, 19433102), (1391, 14948540), (2140, 9716551), (2782, 7474270), (5564, 3737135), (6955, 2989708), (13910, 1494854), (27820, 747427)]