25986740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{787}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 59308032

約数和(自身を除く): 33321292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 787, 1270, 1574, 1651, 2540, 3148, 3302, 3935, 6604, 7870, 8255, 10231, 15740, 16510, 20462, 33020, 40924, 51155, 99949, 102310, 199898, 204620, 399796, 499745, 999490, 1299337, 1998980, 2598674, 5197348, 6496685, 12993370, 25986740]

約数ペア:

[(1, 25986740), (2, 12993370), (4, 6496685), (5, 5197348), (10, 2598674), (13, 1998980), (20, 1299337), (26, 999490), (52, 499745), (65, 399796), (127, 204620), (130, 199898), (254, 102310), (260, 99949), (508, 51155), (635, 40924), (787, 33020), (1270, 20462), (1574, 16510), (1651, 15740), (2540, 10231), (3148, 8255), (3302, 7870), (3935, 6604)]