28133480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 66528000

約数和(自身を除く): 38394520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 79, 116, 145, 158, 232, 290, 307, 316, 395, 580, 614, 632, 790, 1160, 1228, 1535, 1580, 2291, 2456, 3070, 3160, 4582, 6140, 8903, 9164, 11455, 12280, 17806, 18328, 22910, 24253, 35612, 44515, 45820, 48506, 71224, 89030, 91640, 97012, 121265, 178060, 194024, 242530, 356120, 485060, 703337, 970120, 1406674, 2813348, 3516685, 5626696, 7033370, 14066740, 28133480]

約数ペア:

[(1, 28133480), (2, 14066740), (4, 7033370), (5, 5626696), (8, 3516685), (10, 2813348), (20, 1406674), (29, 970120), (40, 703337), (58, 485060), (79, 356120), (116, 242530), (145, 194024), (158, 178060), (232, 121265), (290, 97012), (307, 91640), (316, 89030), (395, 71224), (580, 48506), (614, 45820), (632, 44515), (790, 35612), (1160, 24253), (1228, 22910), (1535, 18328), (1580, 17806), (2291, 12280), (2456, 11455), (3070, 9164), (3160, 8903), (4582, 6140)]