129456688

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{63709}}^1$

素因数の和:63844

約数の個数: 20

約数和(自身を含む): 252801280

約数和(自身を除く): 123344592

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 63709, 127418, 254836, 509672, 1019344, 8091043, 16182086, 32364172, 64728344, 129456688]

約数ペア:

[(1, 129456688), (2, 64728344), (4, 32364172), (8, 16182086), (16, 8091043), (127, 1019344), (254, 509672), (508, 254836), (1016, 127418), (2032, 63709)]