20818050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:105

約数の個数: 144

約数和(自身を含む): 60162816

約数和(自身を除く): 39344766

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 31, 33, 37, 50, 55, 62, 66, 74, 75, 93, 110, 111, 121, 150, 155, 165, 185, 186, 222, 242, 275, 310, 330, 341, 363, 370, 407, 465, 550, 555, 605, 682, 726, 775, 814, 825, 925, 930, 1023, 1110, 1147, 1210, 1221, 1550, 1650, 1705, 1815, 1850, 2035, 2046, 2294, 2325, 2442, 2775, 3025, 3410, 3441, 3630, 3751, 4070, 4477, 4650, 5115, 5550, 5735, 6050, 6105, 6882, 7502, 8525, 8954, 9075, 10175, 10230, 11253, 11470, 12210, 12617, 13431, 17050, 17205, 18150, 18755, 20350, 22385, 22506, 25234, 25575, 26862, 28675, 30525, 34410, 37510, 37851, 44770, 51150, 56265, 57350, 61050, 63085, 67155, 75702, 86025, 93775, 111925, 112530, 126170, 134310, 138787, 172050, 187550, 189255, 223850, 277574, 281325, 315425, 335775, 378510, 416361, 562650, 630850, 671550, 693935, 832722, 946275, 1387870, 1892550, 2081805, 3469675, 4163610, 6939350, 10409025, 20818050]

約数ペア:

[(1, 20818050), (2, 10409025), (3, 6939350), (5, 4163610), (6, 3469675), (10, 2081805), (11, 1892550), (15, 1387870), (22, 946275), (25, 832722), (30, 693935), (31, 671550), (33, 630850), (37, 562650), (50, 416361), (55, 378510), (62, 335775), (66, 315425), (74, 281325), (75, 277574), (93, 223850), (110, 189255), (111, 187550), (121, 172050), (150, 138787), (155, 134310), (165, 126170), (185, 112530), (186, 111925), (222, 93775), (242, 86025), (275, 75702), (310, 67155), (330, 63085), (341, 61050), (363, 57350), (370, 56265), (407, 51150), (465, 44770), (550, 37851), (555, 37510), (605, 34410), (682, 30525), (726, 28675), (775, 26862), (814, 25575), (825, 25234), (925, 22506), (930, 22385), (1023, 20350), (1110, 18755), (1147, 18150), (1210, 17205), (1221, 17050), (1550, 13431), (1650, 12617), (1705, 12210), (1815, 11470), (1850, 11253), (2035, 10230), (2046, 10175), (2294, 9075), (2325, 8954), (2442, 8525), (2775, 7502), (3025, 6882), (3410, 6105), (3441, 6050), (3630, 5735), (3751, 5550), (4070, 5115), (4477, 4650)]