1991904875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{32323}}^1$

素因数の和:32384

約数の個数: 32

約数和(自身を含む): 2722973760

約数和(自身を除く): 731068885

約数列:

[1, 5, 17, 25, 29, 85, 125, 145, 425, 493, 725, 2125, 2465, 3625, 12325, 32323, 61625, 161615, 549491, 808075, 937367, 2747455, 4040375, 4686835, 13737275, 15935239, 23434175, 68686375, 79676195, 117170875, 398380975, 1991904875]

約数ペア:

[(1, 1991904875), (5, 398380975), (17, 117170875), (25, 79676195), (29, 68686375), (85, 23434175), (125, 15935239), (145, 13737275), (425, 4686835), (493, 4040375), (725, 2747455), (2125, 937367), (2465, 808075), (3625, 549491), (12325, 161615), (32323, 61625)]