100909520

素因数分解:

$2^4\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1999}}^1$

素因数の和:2643

約数の個数: 40

約数和(自身を含む): 235104000

約数和(自身を除く): 134194480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 631, 1262, 1999, 2524, 3155, 3998, 5048, 6310, 7996, 9995, 10096, 12620, 15992, 19990, 25240, 31984, 39980, 50480, 79960, 159920, 1261369, 2522738, 5045476, 6306845, 10090952, 12613690, 20181904, 25227380, 50454760, 100909520]

約数ペア:

[(1, 100909520), (2, 50454760), (4, 25227380), (5, 20181904), (8, 12613690), (10, 10090952), (16, 6306845), (20, 5045476), (40, 2522738), (80, 1261369), (631, 159920), (1262, 79960), (1999, 50480), (2524, 39980), (3155, 31984), (3998, 25240), (5048, 19990), (6310, 15992), (7996, 12620), (9995, 10096)]