20555700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{6229}}^1$

素因数の和:6257

約数の個数: 72

約数和(自身を含む): 64891680

約数和(自身を除く): 44335980

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 25, 30, 33, 44, 50, 55, 60, 66, 75, 100, 110, 132, 150, 165, 220, 275, 300, 330, 550, 660, 825, 1100, 1650, 3300, 6229, 12458, 18687, 24916, 31145, 37374, 62290, 68519, 74748, 93435, 124580, 137038, 155725, 186870, 205557, 274076, 311450, 342595, 373740, 411114, 467175, 622900, 685190, 822228, 934350, 1027785, 1370380, 1712975, 1868700, 2055570, 3425950, 4111140, 5138925, 6851900, 10277850, 20555700]

約数ペア:

[(1, 20555700), (2, 10277850), (3, 6851900), (4, 5138925), (5, 4111140), (6, 3425950), (10, 2055570), (11, 1868700), (12, 1712975), (15, 1370380), (20, 1027785), (22, 934350), (25, 822228), (30, 685190), (33, 622900), (44, 467175), (50, 411114), (55, 373740), (60, 342595), (66, 311450), (75, 274076), (100, 205557), (110, 186870), (132, 155725), (150, 137038), (165, 124580), (220, 93435), (275, 74748), (300, 68519), (330, 62290), (550, 37374), (660, 31145), (825, 24916), (1100, 18687), (1650, 12458), (3300, 6229)]