19605080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2621}}^1$

素因数の和:2660

約数の個数: 64

約数和(自身を含む): 50971680

約数和(自身を除く): 31366600

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2621, 3740, 5242, 7480, 10484, 13105, 20968, 26210, 28831, 44557, 52420, 57662, 89114, 104840, 115324, 144155, 178228, 222785, 230648, 288310, 356456, 445570, 490127, 576620, 891140, 980254, 1153240, 1782280, 1960508, 2450635, 3921016, 4901270, 9802540, 19605080]

約数ペア:

[(1, 19605080), (2, 9802540), (4, 4901270), (5, 3921016), (8, 2450635), (10, 1960508), (11, 1782280), (17, 1153240), (20, 980254), (22, 891140), (34, 576620), (40, 490127), (44, 445570), (55, 356456), (68, 288310), (85, 230648), (88, 222785), (110, 178228), (136, 144155), (170, 115324), (187, 104840), (220, 89114), (340, 57662), (374, 52420), (440, 44557), (680, 28831), (748, 26210), (935, 20968), (1496, 13105), (1870, 10484), (2621, 7480), (3740, 5242)]