209541710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1583}}^1$

素因数の和:1689

約数の個数: 64

約数和(自身を含む): 452542464

約数和(自身を除く): 243000754

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 61, 62, 70, 122, 155, 217, 305, 310, 427, 434, 610, 854, 1085, 1583, 1891, 2135, 2170, 3166, 3782, 4270, 7915, 9455, 11081, 13237, 15830, 18910, 22162, 26474, 49073, 55405, 66185, 96563, 98146, 110810, 132370, 193126, 245365, 343511, 482815, 490730, 675941, 687022, 965630, 1351882, 1717555, 2993453, 3379705, 3435110, 5986906, 6759410, 14967265, 20954171, 29934530, 41908342, 104770855, 209541710]

約数ペア:

[(1, 209541710), (2, 104770855), (5, 41908342), (7, 29934530), (10, 20954171), (14, 14967265), (31, 6759410), (35, 5986906), (61, 3435110), (62, 3379705), (70, 2993453), (122, 1717555), (155, 1351882), (217, 965630), (305, 687022), (310, 675941), (427, 490730), (434, 482815), (610, 343511), (854, 245365), (1085, 193126), (1583, 132370), (1891, 110810), (2135, 98146), (2170, 96563), (3166, 66185), (3782, 55405), (4270, 49073), (7915, 26474), (9455, 22162), (11081, 18910), (13237, 15830)]