81720072

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{162143}}^1$

素因数の和:162162

約数の個数: 48

約数和(自身を含む): 252944640

約数和(自身を除く): 171224568

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 162143, 324286, 486429, 648572, 972858, 1135001, 1297144, 1459287, 1945716, 2270002, 2918574, 3405003, 3891432, 4540004, 5837148, 6810006, 9080008, 10215009, 11674296, 13620012, 20430018, 27240024, 40860036, 81720072]

約数ペア:

[(1, 81720072), (2, 40860036), (3, 27240024), (4, 20430018), (6, 13620012), (7, 11674296), (8, 10215009), (9, 9080008), (12, 6810006), (14, 5837148), (18, 4540004), (21, 3891432), (24, 3405003), (28, 2918574), (36, 2270002), (42, 1945716), (56, 1459287), (63, 1297144), (72, 1135001), (84, 972858), (126, 648572), (168, 486429), (252, 324286), (504, 162143)]