131209008

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{390503}}^1$

素因数の和:390521

約数の個数: 40

約数和(自身を含む): 387379968

約数和(自身を除く): 256170960

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 390503, 781006, 1171509, 1562012, 2343018, 2733521, 3124024, 4686036, 5467042, 6248048, 8200563, 9372072, 10934084, 16401126, 18744144, 21868168, 32802252, 43736336, 65604504, 131209008]

約数ペア:

[(1, 131209008), (2, 65604504), (3, 43736336), (4, 32802252), (6, 21868168), (7, 18744144), (8, 16401126), (12, 10934084), (14, 9372072), (16, 8200563), (21, 6248048), (24, 5467042), (28, 4686036), (42, 3124024), (48, 2733521), (56, 2343018), (84, 1562012), (112, 1171509), (168, 781006), (336, 390503)]