20203425

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{907}}^1$

素因数の和:940

約数の個数: 60

約数和(自身を含む): 40870896

約数和(自身を除く): 20667471

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 81, 99, 135, 165, 225, 275, 297, 405, 495, 675, 825, 891, 907, 1485, 2025, 2475, 2721, 4455, 4535, 7425, 8163, 9977, 13605, 22275, 22675, 24489, 29931, 40815, 49885, 68025, 73467, 89793, 122445, 149655, 204075, 249425, 269379, 367335, 448965, 612225, 748275, 808137, 1346895, 1836675, 2244825, 4040685, 6734475, 20203425]

約数ペア:

[(1, 20203425), (3, 6734475), (5, 4040685), (9, 2244825), (11, 1836675), (15, 1346895), (25, 808137), (27, 748275), (33, 612225), (45, 448965), (55, 367335), (75, 269379), (81, 249425), (99, 204075), (135, 149655), (165, 122445), (225, 89793), (275, 73467), (297, 68025), (405, 49885), (495, 40815), (675, 29931), (825, 24489), (891, 22675), (907, 22275), (1485, 13605), (2025, 9977), (2475, 8163), (2721, 7425), (4455, 4535)]