129208784

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{63587}}^1$

素因数の和:63722

約数の個数: 20

約数和(自身を含む): 252317184

約数和(自身を除く): 123108400

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 63587, 127174, 254348, 508696, 1017392, 8075549, 16151098, 32302196, 64604392, 129208784]

約数ペア:

[(1, 129208784), (2, 64604392), (4, 32302196), (8, 16151098), (16, 8075549), (127, 1017392), (254, 508696), (508, 254348), (1016, 127174), (2032, 63587)]