16408780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1489}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 37548000

約数和(自身を除く): 21139220

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 1489, 2204, 2755, 2978, 5510, 5956, 7445, 11020, 14890, 28291, 29780, 43181, 56582, 86362, 113164, 141455, 172724, 215905, 282910, 431810, 565820, 820439, 863620, 1640878, 3281756, 4102195, 8204390, 16408780]

約数ペア:

[(1, 16408780), (2, 8204390), (4, 4102195), (5, 3281756), (10, 1640878), (19, 863620), (20, 820439), (29, 565820), (38, 431810), (58, 282910), (76, 215905), (95, 172724), (116, 141455), (145, 113164), (190, 86362), (290, 56582), (380, 43181), (551, 29780), (580, 28291), (1102, 14890), (1489, 11020), (2204, 7445), (2755, 5956), (2978, 5510)]