78147820

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1\times {\mathrm{263}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 167650560

約数和(自身を除く): 89502740

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 179, 263, 332, 358, 415, 526, 716, 830, 895, 1052, 1315, 1660, 1790, 2630, 3580, 5260, 14857, 21829, 29714, 43658, 47077, 59428, 74285, 87316, 94154, 109145, 148570, 188308, 218290, 235385, 297140, 436580, 470770, 941540, 3907391, 7814782, 15629564, 19536955, 39073910, 78147820]

約数ペア:

[(1, 78147820), (2, 39073910), (4, 19536955), (5, 15629564), (10, 7814782), (20, 3907391), (83, 941540), (166, 470770), (179, 436580), (263, 297140), (332, 235385), (358, 218290), (415, 188308), (526, 148570), (716, 109145), (830, 94154), (895, 87316), (1052, 74285), (1315, 59428), (1660, 47077), (1790, 43658), (2630, 29714), (3580, 21829), (5260, 14857)]