212199760

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{10321}}^1$

素因数の和:10591

約数の個数: 40

約数和(自身を含む): 495332136

約数和(自身を除く): 283132376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 10321, 20560, 20642, 41284, 51605, 82568, 103210, 165136, 206420, 412840, 825680, 2652497, 5304994, 10609988, 13262485, 21219976, 26524970, 42439952, 53049940, 106099880, 212199760]

約数ペア:

[(1, 212199760), (2, 106099880), (4, 53049940), (5, 42439952), (8, 26524970), (10, 21219976), (16, 13262485), (20, 10609988), (40, 5304994), (80, 2652497), (257, 825680), (514, 412840), (1028, 206420), (1285, 165136), (2056, 103210), (2570, 82568), (4112, 51605), (5140, 41284), (10280, 20642), (10321, 20560)]