1388397720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11569981}}^1$

素因数の和:11569995

約数の個数: 32

約数和(自身を含む): 4165193520

約数和(自身を除く): 2776795800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 11569981, 23139962, 34709943, 46279924, 57849905, 69419886, 92559848, 115699810, 138839772, 173549715, 231399620, 277679544, 347099430, 462799240, 694198860, 1388397720]

約数ペア:

[(1, 1388397720), (2, 694198860), (3, 462799240), (4, 347099430), (5, 277679544), (6, 231399620), (8, 173549715), (10, 138839772), (12, 115699810), (15, 92559848), (20, 69419886), (24, 57849905), (30, 46279924), (40, 34709943), (60, 23139962), (120, 11569981)]