20970190

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{433}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 18402290

約数列:

[1, 2, 5, 10, 29, 58, 145, 167, 290, 334, 433, 835, 866, 1670, 2165, 4330, 4843, 9686, 12557, 24215, 25114, 48430, 62785, 72311, 125570, 144622, 361555, 723110, 2097019, 4194038, 10485095, 20970190]

約数ペア:

[(1, 20970190), (2, 10485095), (5, 4194038), (10, 2097019), (29, 723110), (58, 361555), (145, 144622), (167, 125570), (290, 72311), (334, 62785), (433, 48430), (835, 25114), (866, 24215), (1670, 12557), (2165, 9686), (4330, 4843)]