87211930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{4273}}^1$

素因数の和:4450

約数の個数: 32

約数和(自身を含む): 170173584

約数和(自身を除く): 82961654

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 785, 1570, 2041, 4082, 4273, 8546, 10205, 20410, 21365, 42730, 55549, 111098, 277745, 555490, 670861, 1341722, 3354305, 6708610, 8721193, 17442386, 43605965, 87211930]

約数ペア:

[(1, 87211930), (2, 43605965), (5, 17442386), (10, 8721193), (13, 6708610), (26, 3354305), (65, 1341722), (130, 670861), (157, 555490), (314, 277745), (785, 111098), (1570, 55549), (2041, 42730), (4082, 21365), (4273, 20410), (8546, 10205)]