8356820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 18845568

約数和(自身を除く): 10488748

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 491, 740, 851, 982, 1702, 1964, 2455, 3404, 4255, 4910, 8510, 9820, 11293, 17020, 18167, 22586, 36334, 45172, 56465, 72668, 90835, 112930, 181670, 225860, 363340, 417841, 835682, 1671364, 2089205, 4178410, 8356820]

約数ペア:

[(1, 8356820), (2, 4178410), (4, 2089205), (5, 1671364), (10, 835682), (20, 417841), (23, 363340), (37, 225860), (46, 181670), (74, 112930), (92, 90835), (115, 72668), (148, 56465), (185, 45172), (230, 36334), (370, 22586), (460, 18167), (491, 17020), (740, 11293), (851, 9820), (982, 8510), (1702, 4910), (1964, 4255), (2455, 3404)]