128015392

素因数分解:

$2^5\times {\mathrm{79}}^2\times {\mathrm{641}}^1$

素因数の和:809

約数の個数: 36

約数和(自身を含む): 255659166

約数和(自身を除く): 127643774

約数列:

[1, 2, 4, 8, 16, 32, 79, 158, 316, 632, 641, 1264, 1282, 2528, 2564, 5128, 6241, 10256, 12482, 20512, 24964, 49928, 50639, 99856, 101278, 199712, 202556, 405112, 810224, 1620448, 4000481, 8000962, 16001924, 32003848, 64007696, 128015392]

約数ペア:

[(1, 128015392), (2, 64007696), (4, 32003848), (8, 16001924), (16, 8000962), (32, 4000481), (79, 1620448), (158, 810224), (316, 405112), (632, 202556), (641, 199712), (1264, 101278), (1282, 99856), (2528, 50639), (2564, 49928), (5128, 24964), (6241, 20512), (10256, 12482)]