280389626

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1\times {\mathrm{859}}^1$

素因数の和:1310

約数の個数: 32

約数和(自身を含む): 472944960

約数和(自身を除く): 192555334

約数列:

[1, 2, 11, 22, 37, 74, 401, 407, 802, 814, 859, 1718, 4411, 8822, 9449, 14837, 18898, 29674, 31783, 63566, 163207, 326414, 344459, 349613, 688918, 699226, 3789049, 7578098, 12744983, 25489966, 140194813, 280389626]

約数ペア:

[(1, 280389626), (2, 140194813), (11, 25489966), (22, 12744983), (37, 7578098), (74, 3789049), (401, 699226), (407, 688918), (802, 349613), (814, 344459), (859, 326414), (1718, 163207), (4411, 63566), (8822, 31783), (9449, 29674), (14837, 18898)]