67980460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{82903}}^1$

素因数の和:82953

約数の個数: 24

約数和(自身を含む): 146242656

約数和(自身を除く): 78262196

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 82903, 165806, 331612, 414515, 829030, 1658060, 3399023, 6798046, 13596092, 16995115, 33990230, 67980460]

約数ペア:

[(1, 67980460), (2, 33990230), (4, 16995115), (5, 13596092), (10, 6798046), (20, 3399023), (41, 1658060), (82, 829030), (164, 414515), (205, 331612), (410, 165806), (820, 82903)]