28872980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{743}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 63745920

約数和(自身を除く): 34872940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 580, 670, 743, 1340, 1486, 1943, 2972, 3715, 3886, 7430, 7772, 9715, 14860, 19430, 21547, 38860, 43094, 49781, 86188, 99562, 107735, 199124, 215470, 248905, 430940, 497810, 995620, 1443649, 2887298, 5774596, 7218245, 14436490, 28872980]

約数ペア:

[(1, 28872980), (2, 14436490), (4, 7218245), (5, 5774596), (10, 2887298), (20, 1443649), (29, 995620), (58, 497810), (67, 430940), (116, 248905), (134, 215470), (145, 199124), (268, 107735), (290, 99562), (335, 86188), (580, 49781), (670, 43094), (743, 38860), (1340, 21547), (1486, 19430), (1943, 14860), (2972, 9715), (3715, 7772), (3886, 7430)]