78876620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2237}}^1$

素因数の和:2330

約数の個数: 48

約数和(自身を含む): 173704608

約数和(自身を除く): 94827988

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 2237, 3526, 4474, 7052, 8815, 8948, 11185, 17630, 22370, 35260, 44740, 91717, 96191, 183434, 192382, 366868, 384764, 458585, 480955, 917170, 961910, 1834340, 1923820, 3943831, 7887662, 15775324, 19719155, 39438310, 78876620]

約数ペア:

[(1, 78876620), (2, 39438310), (4, 19719155), (5, 15775324), (10, 7887662), (20, 3943831), (41, 1923820), (43, 1834340), (82, 961910), (86, 917170), (164, 480955), (172, 458585), (205, 384764), (215, 366868), (410, 192382), (430, 183434), (820, 96191), (860, 91717), (1763, 44740), (2237, 35260), (3526, 22370), (4474, 17630), (7052, 11185), (8815, 8948)]