1277489360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2281231}}^1$

素因数の和:2281251

約数の個数: 40

約数和(自身を含む): 3394473216

約数和(自身を除く): 2116983856

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2281231, 4562462, 9124924, 11406155, 15968617, 18249848, 22812310, 31937234, 36499696, 45624620, 63874468, 79843085, 91249240, 127748936, 159686170, 182498480, 255497872, 319372340, 638744680, 1277489360]

約数ペア:

[(1, 1277489360), (2, 638744680), (4, 319372340), (5, 255497872), (7, 182498480), (8, 159686170), (10, 127748936), (14, 91249240), (16, 79843085), (20, 63874468), (28, 45624620), (35, 36499696), (40, 31937234), (56, 22812310), (70, 18249848), (80, 15968617), (112, 11406155), (140, 9124924), (280, 4562462), (560, 2281231)]