219404890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{977}}^1\times {\mathrm{1321}}^1$

素因数の和:2322

約数の個数: 32

約数和(自身を含む): 418904784

約数和(自身を除く): 199499894

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 977, 1321, 1954, 2642, 4885, 6605, 9770, 13210, 16609, 22457, 33218, 44914, 83045, 112285, 166090, 224570, 1290617, 2581234, 6453085, 12906170, 21940489, 43880978, 109702445, 219404890]

約数ペア:

[(1, 219404890), (2, 109702445), (5, 43880978), (10, 21940489), (17, 12906170), (34, 6453085), (85, 2581234), (170, 1290617), (977, 224570), (1321, 166090), (1954, 112285), (2642, 83045), (4885, 44914), (6605, 33218), (9770, 22457), (13210, 16609)]