78973480

素因数分解:

$2^3\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{1949}}^1$

素因数の和:2973

約数の個数: 32

約数和(自身を含む): 177957000

約数和(自身を除く): 98983520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1013, 1949, 2026, 3898, 4052, 5065, 7796, 8104, 9745, 10130, 15592, 19490, 20260, 38980, 40520, 77960, 1974337, 3948674, 7897348, 9871685, 15794696, 19743370, 39486740, 78973480]

約数ペア:

[(1, 78973480), (2, 39486740), (4, 19743370), (5, 15794696), (8, 9871685), (10, 7897348), (20, 3948674), (40, 1974337), (1013, 77960), (1949, 40520), (2026, 38980), (3898, 20260), (4052, 19490), (5065, 15592), (7796, 10130), (8104, 9745)]