28363280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{193}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 72745344

約数和(自身を除く): 44382064

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 167, 176, 193, 220, 334, 386, 440, 668, 772, 835, 880, 965, 1336, 1544, 1670, 1837, 1930, 2123, 2672, 3088, 3340, 3674, 3860, 4246, 6680, 7348, 7720, 8492, 9185, 10615, 13360, 14696, 15440, 16984, 18370, 21230, 29392, 32231, 33968, 36740, 42460, 64462, 73480, 84920, 128924, 146960, 161155, 169840, 257848, 322310, 354541, 515696, 644620, 709082, 1289240, 1418164, 1772705, 2578480, 2836328, 3545410, 5672656, 7090820, 14181640, 28363280]

約数ペア:

[(1, 28363280), (2, 14181640), (4, 7090820), (5, 5672656), (8, 3545410), (10, 2836328), (11, 2578480), (16, 1772705), (20, 1418164), (22, 1289240), (40, 709082), (44, 644620), (55, 515696), (80, 354541), (88, 322310), (110, 257848), (167, 169840), (176, 161155), (193, 146960), (220, 128924), (334, 84920), (386, 73480), (440, 64462), (668, 42460), (772, 36740), (835, 33968), (880, 32231), (965, 29392), (1336, 21230), (1544, 18370), (1670, 16984), (1837, 15440), (1930, 14696), (2123, 13360), (2672, 10615), (3088, 9185), (3340, 8492), (3674, 7720), (3860, 7348), (4246, 6680)]