161878660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{4591}}^1$

素因数の和:4684

約数の個数: 48

約数和(自身を含む): 356412672

約数和(自身を除く): 194534012

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 3526, 4591, 7052, 8815, 9182, 17630, 18364, 22955, 35260, 45910, 91820, 188231, 197413, 376462, 394826, 752924, 789652, 941155, 987065, 1882310, 1974130, 3764620, 3948260, 8093933, 16187866, 32375732, 40469665, 80939330, 161878660]

約数ペア:

[(1, 161878660), (2, 80939330), (4, 40469665), (5, 32375732), (10, 16187866), (20, 8093933), (41, 3948260), (43, 3764620), (82, 1974130), (86, 1882310), (164, 987065), (172, 941155), (205, 789652), (215, 752924), (410, 394826), (430, 376462), (820, 197413), (860, 188231), (1763, 91820), (3526, 45910), (4591, 35260), (7052, 22955), (8815, 18364), (9182, 17630)]