90209800

素因数分解:

$2^3\times 5^2\times {\mathrm{227}}^1\times {\mathrm{1987}}^1$

素因数の和:2230

約数の個数: 48

約数和(自身を含む): 210767760

約数和(自身を除く): 120557960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 227, 454, 908, 1135, 1816, 1987, 2270, 3974, 4540, 5675, 7948, 9080, 9935, 11350, 15896, 19870, 22700, 39740, 45400, 49675, 79480, 99350, 198700, 397400, 451049, 902098, 1804196, 2255245, 3608392, 4510490, 9020980, 11276225, 18041960, 22552450, 45104900, 90209800]

約数ペア:

[(1, 90209800), (2, 45104900), (4, 22552450), (5, 18041960), (8, 11276225), (10, 9020980), (20, 4510490), (25, 3608392), (40, 2255245), (50, 1804196), (100, 902098), (200, 451049), (227, 397400), (454, 198700), (908, 99350), (1135, 79480), (1816, 49675), (1987, 45400), (2270, 39740), (3974, 22700), (4540, 19870), (5675, 15896), (7948, 11350), (9080, 9935)]