20768175

素因数分解:

$3^2\times 5^2\times {\mathrm{241}}^1\times {\mathrm{383}}^1$

素因数の和:640

約数の個数: 36

約数和(自身を含む): 37449984

約数和(自身を除く): 16681809

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 241, 383, 723, 1149, 1205, 1915, 2169, 3447, 3615, 5745, 6025, 9575, 10845, 17235, 18075, 28725, 54225, 86175, 92303, 276909, 461515, 830727, 1384545, 2307575, 4153635, 6922725, 20768175]

約数ペア:

[(1, 20768175), (3, 6922725), (5, 4153635), (9, 2307575), (15, 1384545), (25, 830727), (45, 461515), (75, 276909), (225, 92303), (241, 86175), (383, 54225), (723, 28725), (1149, 18075), (1205, 17235), (1915, 10845), (2169, 9575), (3447, 6025), (3615, 5745)]