20408070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^2\times {\mathrm{109}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 50062320

約数和(自身を除く): 29654250

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 109, 158, 218, 237, 327, 395, 474, 545, 654, 790, 1090, 1185, 1635, 2370, 3270, 6241, 8611, 12482, 17222, 18723, 25833, 31205, 37446, 43055, 51666, 62410, 86110, 93615, 129165, 187230, 258330, 680269, 1360538, 2040807, 3401345, 4081614, 6802690, 10204035, 20408070]

約数ペア:

[(1, 20408070), (2, 10204035), (3, 6802690), (5, 4081614), (6, 3401345), (10, 2040807), (15, 1360538), (30, 680269), (79, 258330), (109, 187230), (158, 129165), (218, 93615), (237, 86110), (327, 62410), (395, 51666), (474, 43055), (545, 37446), (654, 31205), (790, 25833), (1090, 18723), (1185, 17222), (1635, 12482), (2370, 8611), (3270, 6241)]