8451940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{827}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 20587392

約数和(自身を除く): 12135452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 827, 1022, 1460, 1654, 2044, 2555, 3308, 4135, 5110, 5789, 8270, 10220, 11578, 16540, 23156, 28945, 57890, 60371, 115780, 120742, 241484, 301855, 422597, 603710, 845194, 1207420, 1690388, 2112985, 4225970, 8451940]

約数ペア:

[(1, 8451940), (2, 4225970), (4, 2112985), (5, 1690388), (7, 1207420), (10, 845194), (14, 603710), (20, 422597), (28, 301855), (35, 241484), (70, 120742), (73, 115780), (140, 60371), (146, 57890), (292, 28945), (365, 23156), (511, 16540), (730, 11578), (827, 10220), (1022, 8270), (1460, 5789), (1654, 5110), (2044, 4135), (2555, 3308)]