20647000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1877}}^1$

素因数の和:1909

約数の個数: 64

約数和(自身を含む): 52734240

約数和(自身を除く): 32087240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 1000, 1100, 1375, 1877, 2200, 2750, 3754, 5500, 7508, 9385, 11000, 15016, 18770, 20647, 37540, 41294, 46925, 75080, 82588, 93850, 103235, 165176, 187700, 206470, 234625, 375400, 412940, 469250, 516175, 825880, 938500, 1032350, 1877000, 2064700, 2580875, 4129400, 5161750, 10323500, 20647000]

約数ペア:

[(1, 20647000), (2, 10323500), (4, 5161750), (5, 4129400), (8, 2580875), (10, 2064700), (11, 1877000), (20, 1032350), (22, 938500), (25, 825880), (40, 516175), (44, 469250), (50, 412940), (55, 375400), (88, 234625), (100, 206470), (110, 187700), (125, 165176), (200, 103235), (220, 93850), (250, 82588), (275, 75080), (440, 46925), (500, 41294), (550, 37540), (1000, 20647), (1100, 18770), (1375, 15016), (1877, 11000), (2200, 9385), (2750, 7508), (3754, 5500)]