28453280

素因数分解:

$2^5\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1091}}^1$

素因数の和:1269

約数の個数: 48

約数和(自身を含む): 67695264

約数和(自身を除く): 39241984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 163, 326, 652, 815, 1091, 1304, 1630, 2182, 2608, 3260, 4364, 5216, 5455, 6520, 8728, 10910, 13040, 17456, 21820, 26080, 34912, 43640, 87280, 174560, 177833, 355666, 711332, 889165, 1422664, 1778330, 2845328, 3556660, 5690656, 7113320, 14226640, 28453280]

約数ペア:

[(1, 28453280), (2, 14226640), (4, 7113320), (5, 5690656), (8, 3556660), (10, 2845328), (16, 1778330), (20, 1422664), (32, 889165), (40, 711332), (80, 355666), (160, 177833), (163, 174560), (326, 87280), (652, 43640), (815, 34912), (1091, 26080), (1304, 21820), (1630, 17456), (2182, 13040), (2608, 10910), (3260, 8728), (4364, 6520), (5216, 5455)]