19798960

素因数分解:

$2^4\times 5^1\times {\mathrm{379}}^1\times {\mathrm{653}}^1$

素因数の和:1045

約数の個数: 40

約数和(自身を含む): 46224720

約数和(自身を除く): 26425760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 379, 653, 758, 1306, 1516, 1895, 2612, 3032, 3265, 3790, 5224, 6064, 6530, 7580, 10448, 13060, 15160, 26120, 30320, 52240, 247487, 494974, 989948, 1237435, 1979896, 2474870, 3959792, 4949740, 9899480, 19798960]

約数ペア:

[(1, 19798960), (2, 9899480), (4, 4949740), (5, 3959792), (8, 2474870), (10, 1979896), (16, 1237435), (20, 989948), (40, 494974), (80, 247487), (379, 52240), (653, 30320), (758, 26120), (1306, 15160), (1516, 13060), (1895, 10448), (2612, 7580), (3032, 6530), (3265, 6064), (3790, 5224)]