65661760

素因数分解:

$2^6\times 5^1\times {\mathrm{449}}^1\times {\mathrm{457}}^1$

素因数の和:923

約数の個数: 56

約数和(自身を含む): 157048200

約数和(自身を除く): 91386440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 449, 457, 898, 914, 1796, 1828, 2245, 2285, 3592, 3656, 4490, 4570, 7184, 7312, 8980, 9140, 14368, 14624, 17960, 18280, 28736, 29248, 35920, 36560, 71840, 73120, 143680, 146240, 205193, 410386, 820772, 1025965, 1641544, 2051930, 3283088, 4103860, 6566176, 8207720, 13132352, 16415440, 32830880, 65661760]

約数ペア:

[(1, 65661760), (2, 32830880), (4, 16415440), (5, 13132352), (8, 8207720), (10, 6566176), (16, 4103860), (20, 3283088), (32, 2051930), (40, 1641544), (64, 1025965), (80, 820772), (160, 410386), (320, 205193), (449, 146240), (457, 143680), (898, 73120), (914, 71840), (1796, 36560), (1828, 35920), (2245, 29248), (2285, 28736), (3592, 18280), (3656, 17960), (4490, 14624), (4570, 14368), (7184, 9140), (7312, 8980)]