64408640

素因数分解:

$2^6\times 5^1\times {\mathrm{431}}^1\times {\mathrm{467}}^1$

素因数の和:915

約数の個数: 56

約数和(自身を含む): 154058112

約数和(自身を除く): 89649472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 431, 467, 862, 934, 1724, 1868, 2155, 2335, 3448, 3736, 4310, 4670, 6896, 7472, 8620, 9340, 13792, 14944, 17240, 18680, 27584, 29888, 34480, 37360, 68960, 74720, 137920, 149440, 201277, 402554, 805108, 1006385, 1610216, 2012770, 3220432, 4025540, 6440864, 8051080, 12881728, 16102160, 32204320, 64408640]

約数ペア:

[(1, 64408640), (2, 32204320), (4, 16102160), (5, 12881728), (8, 8051080), (10, 6440864), (16, 4025540), (20, 3220432), (32, 2012770), (40, 1610216), (64, 1006385), (80, 805108), (160, 402554), (320, 201277), (431, 149440), (467, 137920), (862, 74720), (934, 68960), (1724, 37360), (1868, 34480), (2155, 29888), (2335, 27584), (3448, 18680), (3736, 17240), (4310, 14944), (4670, 13792), (6896, 9340), (7472, 8620)]