81847640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41759}}^1$

素因数の和:41784

約数の個数: 48

約数和(自身を含む): 214228800

約数和(自身を除く): 132381160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 41759, 83518, 167036, 208795, 292313, 334072, 417590, 584626, 835180, 1169252, 1461565, 1670360, 2046191, 2338504, 2923130, 4092382, 5846260, 8184764, 10230955, 11692520, 16369528, 20461910, 40923820, 81847640]

約数ペア:

[(1, 81847640), (2, 40923820), (4, 20461910), (5, 16369528), (7, 11692520), (8, 10230955), (10, 8184764), (14, 5846260), (20, 4092382), (28, 2923130), (35, 2338504), (40, 2046191), (49, 1670360), (56, 1461565), (70, 1169252), (98, 835180), (140, 584626), (196, 417590), (245, 334072), (280, 292313), (392, 208795), (490, 167036), (980, 83518), (1960, 41759)]