19217140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1949}}^1$

素因数の和:2004

約数の個数: 48

約数和(自身を含む): 44226000

約数和(自身を除く): 25008860

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1949, 1972, 2465, 3898, 4930, 7796, 9745, 9860, 19490, 33133, 38980, 56521, 66266, 113042, 132532, 165665, 226084, 282605, 331330, 565210, 662660, 960857, 1130420, 1921714, 3843428, 4804285, 9608570, 19217140]

約数ペア:

[(1, 19217140), (2, 9608570), (4, 4804285), (5, 3843428), (10, 1921714), (17, 1130420), (20, 960857), (29, 662660), (34, 565210), (58, 331330), (68, 282605), (85, 226084), (116, 165665), (145, 132532), (170, 113042), (290, 66266), (340, 56521), (493, 38980), (580, 33133), (986, 19490), (1949, 9860), (1972, 9745), (2465, 7796), (3898, 4930)]