129794240

素因数分解:

$2^6\times 5^1\times {\mathrm{405607}}^1$

素因数の和:405624

約数の個数: 28

約数和(自身を含む): 309073296

約数和(自身を除く): 179279056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 405607, 811214, 1622428, 2028035, 3244856, 4056070, 6489712, 8112140, 12979424, 16224280, 25958848, 32448560, 64897120, 129794240]

約数ペア:

[(1, 129794240), (2, 64897120), (4, 32448560), (5, 25958848), (8, 16224280), (10, 12979424), (16, 8112140), (20, 6489712), (32, 4056070), (40, 3244856), (64, 2028035), (80, 1622428), (160, 811214), (320, 405607)]