42420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 137088

約数和(自身を除く): 94668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 101, 105, 140, 202, 210, 303, 404, 420, 505, 606, 707, 1010, 1212, 1414, 1515, 2020, 2121, 2828, 3030, 3535, 4242, 6060, 7070, 8484, 10605, 14140, 21210, 42420]

約数ペア:

[(1, 42420), (2, 21210), (3, 14140), (4, 10605), (5, 8484), (6, 7070), (7, 6060), (10, 4242), (12, 3535), (14, 3030), (15, 2828), (20, 2121), (21, 2020), (28, 1515), (30, 1414), (35, 1212), (42, 1010), (60, 707), (70, 606), (84, 505), (101, 420), (105, 404), (140, 303), (202, 210)]