213811790

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1\times {\mathrm{653}}^1$

素因数の和:1036

約数の個数: 32

約数和(自身を含む): 389888640

約数和(自身を除く): 176076850

約数列:

[1, 2, 5, 10, 137, 239, 274, 478, 653, 685, 1195, 1306, 1370, 2390, 3265, 6530, 32743, 65486, 89461, 156067, 163715, 178922, 312134, 327430, 447305, 780335, 894610, 1560670, 21381179, 42762358, 106905895, 213811790]

約数ペア:

[(1, 213811790), (2, 106905895), (5, 42762358), (10, 21381179), (137, 1560670), (239, 894610), (274, 780335), (478, 447305), (653, 327430), (685, 312134), (1195, 178922), (1306, 163715), (1370, 156067), (2390, 89461), (3265, 65486), (6530, 32743)]