90451580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{563}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 197557920

約数和(自身を除く): 107106340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 277, 290, 554, 563, 580, 1108, 1126, 1385, 2252, 2770, 2815, 5540, 5630, 8033, 11260, 16066, 16327, 32132, 32654, 40165, 65308, 80330, 81635, 155951, 160660, 163270, 311902, 326540, 623804, 779755, 1559510, 3119020, 4522579, 9045158, 18090316, 22612895, 45225790, 90451580]

約数ペア:

[(1, 90451580), (2, 45225790), (4, 22612895), (5, 18090316), (10, 9045158), (20, 4522579), (29, 3119020), (58, 1559510), (116, 779755), (145, 623804), (277, 326540), (290, 311902), (554, 163270), (563, 160660), (580, 155951), (1108, 81635), (1126, 80330), (1385, 65308), (2252, 40165), (2770, 32654), (2815, 32132), (5540, 16327), (5630, 16066), (8033, 11260)]