19780830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{219787}}^1$

素因数の和:219800

約数の個数: 24

約数和(自身を含む): 51430392

約数和(自身を除く): 31649562

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 219787, 439574, 659361, 1098935, 1318722, 1978083, 2197870, 3296805, 3956166, 6593610, 9890415, 19780830]

約数ペア:

[(1, 19780830), (2, 9890415), (3, 6593610), (5, 3956166), (6, 3296805), (9, 2197870), (10, 1978083), (15, 1318722), (18, 1098935), (30, 659361), (45, 439574), (90, 219787)]