80820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449}}^1$

素因数の和:464

約数の個数: 36

約数和(自身を含む): 245700

約数和(自身を除く): 164880

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449, 898, 1347, 1796, 2245, 2694, 4041, 4490, 5388, 6735, 8082, 8980, 13470, 16164, 20205, 26940, 40410, 80820]

約数ペア:

[(1, 80820), (2, 40410), (3, 26940), (4, 20205), (5, 16164), (6, 13470), (9, 8980), (10, 8082), (12, 6735), (15, 5388), (18, 4490), (20, 4041), (30, 2694), (36, 2245), (45, 1796), (60, 1347), (90, 898), (180, 449)]