862540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 2124864

約数和(自身を除く): 1262324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 101, 122, 140, 202, 244, 305, 404, 427, 505, 610, 707, 854, 1010, 1220, 1414, 1708, 2020, 2135, 2828, 3535, 4270, 6161, 7070, 8540, 12322, 14140, 24644, 30805, 43127, 61610, 86254, 123220, 172508, 215635, 431270, 862540]

約数ペア:

[(1, 862540), (2, 431270), (4, 215635), (5, 172508), (7, 123220), (10, 86254), (14, 61610), (20, 43127), (28, 30805), (35, 24644), (61, 14140), (70, 12322), (101, 8540), (122, 7070), (140, 6161), (202, 4270), (244, 3535), (305, 2828), (404, 2135), (427, 2020), (505, 1708), (610, 1414), (707, 1220), (854, 1010)]