128578864

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{63277}}^1$

素因数の和:63412

約数の個数: 20

約数和(自身を含む): 251087104

約数和(自身を除く): 122508240

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 63277, 126554, 253108, 506216, 1012432, 8036179, 16072358, 32144716, 64289432, 128578864]

約数ペア:

[(1, 128578864), (2, 64289432), (4, 32144716), (8, 16072358), (16, 8036179), (127, 1012432), (254, 506216), (508, 253108), (1016, 126554), (2032, 63277)]