138528880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{35339}}^1$

素因数の和:35366

約数の個数: 60

約数和(自身を含む): 374674680

約数和(自身を除く): 236145800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 35339, 70678, 141356, 176695, 247373, 282712, 353390, 494746, 565424, 706780, 989492, 1236865, 1413560, 1731611, 1978984, 2473730, 2827120, 3463222, 3957968, 4947460, 6926444, 8658055, 9894920, 13852888, 17316110, 19789840, 27705776, 34632220, 69264440, 138528880]

約数ペア:

[(1, 138528880), (2, 69264440), (4, 34632220), (5, 27705776), (7, 19789840), (8, 17316110), (10, 13852888), (14, 9894920), (16, 8658055), (20, 6926444), (28, 4947460), (35, 3957968), (40, 3463222), (49, 2827120), (56, 2473730), (70, 1978984), (80, 1731611), (98, 1413560), (112, 1236865), (140, 989492), (196, 706780), (245, 565424), (280, 494746), (392, 353390), (490, 282712), (560, 247373), (784, 176695), (980, 141356), (1960, 70678), (3920, 35339)]