28546640

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3533}}^1$

素因数の和:3647

約数の個数: 40

約数和(自身を含む): 67047048

約数和(自身を除く): 38500408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 3533, 4040, 7066, 8080, 14132, 17665, 28264, 35330, 56528, 70660, 141320, 282640, 356833, 713666, 1427332, 1784165, 2854664, 3568330, 5709328, 7136660, 14273320, 28546640]

約数ペア:

[(1, 28546640), (2, 14273320), (4, 7136660), (5, 5709328), (8, 3568330), (10, 2854664), (16, 1784165), (20, 1427332), (40, 713666), (80, 356833), (101, 282640), (202, 141320), (404, 70660), (505, 56528), (808, 35330), (1010, 28264), (1616, 17665), (2020, 14132), (3533, 8080), (4040, 7066)]