87839660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1663}}^1$

素因数の和:1830

約数の個数: 48

約数和(自身を含む): 195686400

約数和(自身を除く): 107846740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1390, 1663, 2641, 2780, 3326, 5282, 6652, 8315, 10564, 13205, 16630, 26410, 31597, 33260, 52820, 63194, 126388, 157985, 231157, 315970, 462314, 631940, 924628, 1155785, 2311570, 4391983, 4623140, 8783966, 17567932, 21959915, 43919830, 87839660]

約数ペア:

[(1, 87839660), (2, 43919830), (4, 21959915), (5, 17567932), (10, 8783966), (19, 4623140), (20, 4391983), (38, 2311570), (76, 1155785), (95, 924628), (139, 631940), (190, 462314), (278, 315970), (380, 231157), (556, 157985), (695, 126388), (1390, 63194), (1663, 52820), (2641, 33260), (2780, 31597), (3326, 26410), (5282, 16630), (6652, 13205), (8315, 10564)]