82748440

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18979}}^1$

素因数の和:19099

約数の個数: 32

約数和(自身を含む): 187902000

約数和(自身を除く): 105153560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 18979, 37958, 75916, 94895, 151832, 189790, 379580, 759160, 2068711, 4137422, 8274844, 10343555, 16549688, 20687110, 41374220, 82748440]

約数ペア:

[(1, 82748440), (2, 41374220), (4, 20687110), (5, 16549688), (8, 10343555), (10, 8274844), (20, 4137422), (40, 2068711), (109, 759160), (218, 379580), (436, 189790), (545, 151832), (872, 94895), (1090, 75916), (2180, 37958), (4360, 18979)]