128278370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{13103}}^1$

素因数の和:13210

約数の個数: 32

約数和(自身を含む): 254741760

約数和(自身を除く): 126463390

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 4895, 9790, 13103, 26206, 65515, 131030, 144133, 288266, 720665, 1166167, 1441330, 2332334, 5830835, 11661670, 12827837, 25655674, 64139185, 128278370]

約数ペア:

[(1, 128278370), (2, 64139185), (5, 25655674), (10, 12827837), (11, 11661670), (22, 5830835), (55, 2332334), (89, 1441330), (110, 1166167), (178, 720665), (445, 288266), (890, 144133), (979, 131030), (1958, 65515), (4895, 26206), (9790, 13103)]