19807600

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{2153}}^1$

素因数の和:2194

約数の個数: 60

約数和(自身を含む): 49679856

約数和(自身を除く): 29872256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 184, 200, 230, 368, 400, 460, 575, 920, 1150, 1840, 2153, 2300, 4306, 4600, 8612, 9200, 10765, 17224, 21530, 34448, 43060, 49519, 53825, 86120, 99038, 107650, 172240, 198076, 215300, 247595, 396152, 430600, 495190, 792304, 861200, 990380, 1237975, 1980760, 2475950, 3961520, 4951900, 9903800, 19807600]

約数ペア:

[(1, 19807600), (2, 9903800), (4, 4951900), (5, 3961520), (8, 2475950), (10, 1980760), (16, 1237975), (20, 990380), (23, 861200), (25, 792304), (40, 495190), (46, 430600), (50, 396152), (80, 247595), (92, 215300), (100, 198076), (115, 172240), (184, 107650), (200, 99038), (230, 86120), (368, 53825), (400, 49519), (460, 43060), (575, 34448), (920, 21530), (1150, 17224), (1840, 10765), (2153, 9200), (2300, 8612), (4306, 4600)]