28550320

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2137}}^1$

素因数の和:2317

約数の個数: 40

約数和(自身を含む): 66808224

約数和(自身を除く): 38257904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2137, 2672, 3340, 4274, 6680, 8548, 10685, 13360, 17096, 21370, 34192, 42740, 85480, 170960, 356879, 713758, 1427516, 1784395, 2855032, 3568790, 5710064, 7137580, 14275160, 28550320]

約数ペア:

[(1, 28550320), (2, 14275160), (4, 7137580), (5, 5710064), (8, 3568790), (10, 2855032), (16, 1784395), (20, 1427516), (40, 713758), (80, 356879), (167, 170960), (334, 85480), (668, 42740), (835, 34192), (1336, 21370), (1670, 17096), (2137, 13360), (2672, 10685), (3340, 8548), (4274, 6680)]