205123830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:689

約数の個数: 64

約数和(自身を含む): 501336000

約数和(自身を除く): 296212170

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 109, 149, 218, 298, 327, 421, 447, 545, 654, 745, 842, 894, 1090, 1263, 1490, 1635, 2105, 2235, 2526, 3270, 4210, 4470, 6315, 12630, 16241, 32482, 45889, 48723, 62729, 81205, 91778, 97446, 125458, 137667, 162410, 188187, 229445, 243615, 275334, 313645, 376374, 458890, 487230, 627290, 688335, 940935, 1376670, 1881870, 6837461, 13674922, 20512383, 34187305, 41024766, 68374610, 102561915, 205123830]

約数ペア:

[(1, 205123830), (2, 102561915), (3, 68374610), (5, 41024766), (6, 34187305), (10, 20512383), (15, 13674922), (30, 6837461), (109, 1881870), (149, 1376670), (218, 940935), (298, 688335), (327, 627290), (421, 487230), (447, 458890), (545, 376374), (654, 313645), (745, 275334), (842, 243615), (894, 229445), (1090, 188187), (1263, 162410), (1490, 137667), (1635, 125458), (2105, 97446), (2235, 91778), (2526, 81205), (3270, 62729), (4210, 48723), (4470, 45889), (6315, 32482), (12630, 16241)]