128117776

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{101359}}^1$

素因数の和:101446

約数の個数: 20

約数和(自身を含む): 251372800

約数和(自身を除く): 123255024

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 101359, 202718, 405436, 810872, 1621744, 8007361, 16014722, 32029444, 64058888, 128117776]

約数ペア:

[(1, 128117776), (2, 64058888), (4, 32029444), (8, 16014722), (16, 8007361), (79, 1621744), (158, 810872), (316, 405436), (632, 202718), (1264, 101359)]