129784340

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{18919}}^1$

素因数の和:18949

約数の個数: 48

約数和(自身を含む): 317856000

約数和(自身を除く): 188071660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 18919, 37838, 75676, 94595, 132433, 189190, 264866, 378380, 529732, 662165, 927031, 1324330, 1854062, 2648660, 3708124, 4635155, 6489217, 9270310, 12978434, 18540620, 25956868, 32446085, 64892170, 129784340]

約数ペア:

[(1, 129784340), (2, 64892170), (4, 32446085), (5, 25956868), (7, 18540620), (10, 12978434), (14, 9270310), (20, 6489217), (28, 4635155), (35, 3708124), (49, 2648660), (70, 1854062), (98, 1324330), (140, 927031), (196, 662165), (245, 529732), (343, 378380), (490, 264866), (686, 189190), (980, 132433), (1372, 94595), (1715, 75676), (3430, 37838), (6860, 18919)]