139981240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71419}}^1$

素因数の和:71444

約数の個数: 48

約数和(自身を含む): 366384600

約数和(自身を除く): 226403360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 71419, 142838, 285676, 357095, 499933, 571352, 714190, 999866, 1428380, 1999732, 2499665, 2856760, 3499531, 3999464, 4999330, 6999062, 9998660, 13998124, 17497655, 19997320, 27996248, 34995310, 69990620, 139981240]

約数ペア:

[(1, 139981240), (2, 69990620), (4, 34995310), (5, 27996248), (7, 19997320), (8, 17497655), (10, 13998124), (14, 9998660), (20, 6999062), (28, 4999330), (35, 3999464), (40, 3499531), (49, 2856760), (56, 2499665), (70, 1999732), (98, 1428380), (140, 999866), (196, 714190), (245, 571352), (280, 499933), (392, 357095), (490, 285676), (980, 142838), (1960, 71419)]