179620420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{12703}}^1$

素因数の和:12820

約数の個数: 48

約数和(自身を含む): 435391488

約数和(自身を除く): 255771068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 12703, 14140, 25406, 50812, 63515, 88921, 127030, 177842, 254060, 355684, 444605, 889210, 1283003, 1778420, 2566006, 5132012, 6415015, 8981021, 12830030, 17962042, 25660060, 35924084, 44905105, 89810210, 179620420]

約数ペア:

[(1, 179620420), (2, 89810210), (4, 44905105), (5, 35924084), (7, 25660060), (10, 17962042), (14, 12830030), (20, 8981021), (28, 6415015), (35, 5132012), (70, 2566006), (101, 1778420), (140, 1283003), (202, 889210), (404, 444605), (505, 355684), (707, 254060), (1010, 177842), (1414, 127030), (2020, 88921), (2828, 63515), (3535, 50812), (7070, 25406), (12703, 14140)]