85880020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{563}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 187608960

約数和(自身を除く): 101728940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 263, 290, 526, 563, 580, 1052, 1126, 1315, 2252, 2630, 2815, 5260, 5630, 7627, 11260, 15254, 16327, 30508, 32654, 38135, 65308, 76270, 81635, 148069, 152540, 163270, 296138, 326540, 592276, 740345, 1480690, 2961380, 4294001, 8588002, 17176004, 21470005, 42940010, 85880020]

約数ペア:

[(1, 85880020), (2, 42940010), (4, 21470005), (5, 17176004), (10, 8588002), (20, 4294001), (29, 2961380), (58, 1480690), (116, 740345), (145, 592276), (263, 326540), (290, 296138), (526, 163270), (563, 152540), (580, 148069), (1052, 81635), (1126, 76270), (1315, 65308), (2252, 38135), (2630, 32654), (2815, 30508), (5260, 16327), (5630, 15254), (7627, 11260)]