20612085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 36681984

約数和(自身を除く): 16069899

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 169, 173, 195, 235, 507, 519, 611, 705, 845, 865, 1833, 2249, 2535, 2595, 3055, 6747, 7943, 8131, 9165, 11245, 23829, 24393, 29237, 33735, 39715, 40655, 87711, 105703, 119145, 121965, 146185, 317109, 438555, 528515, 1374139, 1585545, 4122417, 6870695, 20612085]

約数ペア:

[(1, 20612085), (3, 6870695), (5, 4122417), (13, 1585545), (15, 1374139), (39, 528515), (47, 438555), (65, 317109), (141, 146185), (169, 121965), (173, 119145), (195, 105703), (235, 87711), (507, 40655), (519, 39715), (611, 33735), (705, 29237), (845, 24393), (865, 23829), (1833, 11245), (2249, 9165), (2535, 8131), (2595, 7943), (3055, 6747)]