213142960

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{24443}}^1$

素因数の和:24565

約数の個数: 40

約数和(自身を含む): 500124240

約数和(自身を除く): 286981280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 24443, 48886, 97772, 122215, 195544, 244430, 391088, 488860, 977720, 1955440, 2664287, 5328574, 10657148, 13321435, 21314296, 26642870, 42628592, 53285740, 106571480, 213142960]

約数ペア:

[(1, 213142960), (2, 106571480), (4, 53285740), (5, 42628592), (8, 26642870), (10, 21314296), (16, 13321435), (20, 10657148), (40, 5328574), (80, 2664287), (109, 1955440), (218, 977720), (436, 488860), (545, 391088), (872, 244430), (1090, 195544), (1744, 122215), (2180, 97772), (4360, 48886), (8720, 24443)]