28520380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2017}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 69160896

約数和(自身を除く): 40640516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2017, 2020, 2828, 3535, 4034, 7070, 8068, 10085, 14119, 14140, 20170, 28238, 40340, 56476, 70595, 141190, 203717, 282380, 407434, 814868, 1018585, 1426019, 2037170, 2852038, 4074340, 5704076, 7130095, 14260190, 28520380]

約数ペア:

[(1, 28520380), (2, 14260190), (4, 7130095), (5, 5704076), (7, 4074340), (10, 2852038), (14, 2037170), (20, 1426019), (28, 1018585), (35, 814868), (70, 407434), (101, 282380), (140, 203717), (202, 141190), (404, 70595), (505, 56476), (707, 40340), (1010, 28238), (1414, 20170), (2017, 14140), (2020, 14119), (2828, 10085), (3535, 8068), (4034, 7070)]