20313700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 49059360

約数和(自身を除く): 28745660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 59, 100, 110, 118, 220, 236, 275, 295, 313, 550, 590, 626, 649, 1100, 1180, 1252, 1298, 1475, 1565, 2596, 2950, 3130, 3245, 3443, 5900, 6260, 6490, 6886, 7825, 12980, 13772, 15650, 16225, 17215, 18467, 31300, 32450, 34430, 36934, 64900, 68860, 73868, 86075, 92335, 172150, 184670, 203137, 344300, 369340, 406274, 461675, 812548, 923350, 1015685, 1846700, 2031370, 4062740, 5078425, 10156850, 20313700]

約数ペア:

[(1, 20313700), (2, 10156850), (4, 5078425), (5, 4062740), (10, 2031370), (11, 1846700), (20, 1015685), (22, 923350), (25, 812548), (44, 461675), (50, 406274), (55, 369340), (59, 344300), (100, 203137), (110, 184670), (118, 172150), (220, 92335), (236, 86075), (275, 73868), (295, 68860), (313, 64900), (550, 36934), (590, 34430), (626, 32450), (649, 31300), (1100, 18467), (1180, 17215), (1252, 16225), (1298, 15650), (1475, 13772), (1565, 12980), (2596, 7825), (2950, 6886), (3130, 6490), (3245, 6260), (3443, 5900)]