1275809320

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{661}}^2$

素因数の和:1406

約数の個数: 48

約数和(自身を含む): 2914302780

約数和(自身を除く): 1638493460

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 661, 730, 1322, 1460, 2644, 2920, 3305, 5288, 6610, 13220, 26440, 48253, 96506, 193012, 241265, 386024, 436921, 482530, 873842, 965060, 1747684, 1930120, 2184605, 3495368, 4369210, 8738420, 17476840, 31895233, 63790466, 127580932, 159476165, 255161864, 318952330, 637904660, 1275809320]

約数ペア:

[(1, 1275809320), (2, 637904660), (4, 318952330), (5, 255161864), (8, 159476165), (10, 127580932), (20, 63790466), (40, 31895233), (73, 17476840), (146, 8738420), (292, 4369210), (365, 3495368), (584, 2184605), (661, 1930120), (730, 1747684), (1322, 965060), (1460, 873842), (2644, 482530), (2920, 436921), (3305, 386024), (5288, 241265), (6610, 193012), (13220, 96506), (26440, 48253)]