20009025

素因数分解:

$3^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:304

約数の個数: 60

約数和(自身を含む): 38125164

約数和(自身を除く): 18116139

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 75, 81, 123, 135, 205, 225, 241, 369, 405, 615, 675, 723, 1025, 1107, 1205, 1845, 2025, 2169, 3075, 3321, 3615, 5535, 6025, 6507, 9225, 9881, 10845, 16605, 18075, 19521, 27675, 29643, 32535, 49405, 54225, 83025, 88929, 97605, 148215, 162675, 247025, 266787, 444645, 488025, 741075, 800361, 1333935, 2223225, 4001805, 6669675, 20009025]

約数ペア:

[(1, 20009025), (3, 6669675), (5, 4001805), (9, 2223225), (15, 1333935), (25, 800361), (27, 741075), (41, 488025), (45, 444645), (75, 266787), (81, 247025), (123, 162675), (135, 148215), (205, 97605), (225, 88929), (241, 83025), (369, 54225), (405, 49405), (615, 32535), (675, 29643), (723, 27675), (1025, 19521), (1107, 18075), (1205, 16605), (1845, 10845), (2025, 9881), (2169, 9225), (3075, 6507), (3321, 6025), (3615, 5535)]