728210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 32

約数和(自身を含む): 1527552

約数和(自身を除く): 799342

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 101, 103, 202, 206, 505, 515, 707, 721, 1010, 1030, 1414, 1442, 3535, 3605, 7070, 7210, 10403, 20806, 52015, 72821, 104030, 145642, 364105, 728210]

約数ペア:

[(1, 728210), (2, 364105), (5, 145642), (7, 104030), (10, 72821), (14, 52015), (35, 20806), (70, 10403), (101, 7210), (103, 7070), (202, 3605), (206, 3535), (505, 1442), (515, 1414), (707, 1030), (721, 1010)]