9881320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 23328000

約数和(自身を除く): 13446680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 59, 79, 106, 118, 158, 212, 236, 265, 295, 316, 395, 424, 472, 530, 590, 632, 790, 1060, 1180, 1580, 2120, 2360, 3127, 3160, 4187, 4661, 6254, 8374, 9322, 12508, 15635, 16748, 18644, 20935, 23305, 25016, 31270, 33496, 37288, 41870, 46610, 62540, 83740, 93220, 125080, 167480, 186440, 247033, 494066, 988132, 1235165, 1976264, 2470330, 4940660, 9881320]

約数ペア:

[(1, 9881320), (2, 4940660), (4, 2470330), (5, 1976264), (8, 1235165), (10, 988132), (20, 494066), (40, 247033), (53, 186440), (59, 167480), (79, 125080), (106, 93220), (118, 83740), (158, 62540), (212, 46610), (236, 41870), (265, 37288), (295, 33496), (316, 31270), (395, 25016), (424, 23305), (472, 20935), (530, 18644), (590, 16748), (632, 15635), (790, 12508), (1060, 9322), (1180, 8374), (1580, 6254), (2120, 4661), (2360, 4187), (3127, 3160)]