205128970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 403045632

約数和(自身を除く): 197916662

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 122, 131, 151, 170, 262, 302, 305, 610, 655, 755, 1037, 1310, 1510, 2074, 2227, 2567, 4454, 5134, 5185, 7991, 9211, 10370, 11135, 12835, 15982, 18422, 19781, 22270, 25670, 39562, 39955, 46055, 79910, 92110, 98905, 135847, 156587, 197810, 271694, 313174, 336277, 672554, 679235, 782935, 1206641, 1358470, 1565870, 1681385, 2413282, 3362770, 6033205, 12066410, 20512897, 41025794, 102564485, 205128970]

約数ペア:

[(1, 205128970), (2, 102564485), (5, 41025794), (10, 20512897), (17, 12066410), (34, 6033205), (61, 3362770), (85, 2413282), (122, 1681385), (131, 1565870), (151, 1358470), (170, 1206641), (262, 782935), (302, 679235), (305, 672554), (610, 336277), (655, 313174), (755, 271694), (1037, 197810), (1310, 156587), (1510, 135847), (2074, 98905), (2227, 92110), (2567, 79910), (4454, 46055), (5134, 39955), (5185, 39562), (7991, 25670), (9211, 22270), (10370, 19781), (11135, 18422), (12835, 15982)]