1456420

素因数分解:

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

素因数の和:220

約数の個数: 48

約数和(自身を含む): 3564288

約数和(自身を除く): 2107868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 103, 140, 202, 206, 404, 412, 505, 515, 707, 721, 1010, 1030, 1414, 1442, 2020, 2060, 2828, 2884, 3535, 3605, 7070, 7210, 10403, 14140, 14420, 20806, 41612, 52015, 72821, 104030, 145642, 208060, 291284, 364105, 728210, 1456420]

約数ペア:

[(1, 1456420), (2, 728210), (4, 364105), (5, 291284), (7, 208060), (10, 145642), (14, 104030), (20, 72821), (28, 52015), (35, 41612), (70, 20806), (101, 14420), (103, 14140), (140, 10403), (202, 7210), (206, 7070), (404, 3605), (412, 3535), (505, 2884), (515, 2828), (707, 2060), (721, 2020), (1010, 1442), (1030, 1414)]