20100398960

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1917977}}^1$

素因数の和:1918121

約数の個数: 40

約数和(自身を含む): 47090195856

約数和(自身を除く): 26989796896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 1917977, 3835954, 7671908, 9589885, 15343816, 19179770, 30687632, 38359540, 76719080, 153438160, 251254987, 502509974, 1005019948, 1256274935, 2010039896, 2512549870, 4020079792, 5025099740, 10050199480, 20100398960]

約数ペア:

[(1, 20100398960), (2, 10050199480), (4, 5025099740), (5, 4020079792), (8, 2512549870), (10, 2010039896), (16, 1256274935), (20, 1005019948), (40, 502509974), (80, 251254987), (131, 153438160), (262, 76719080), (524, 38359540), (655, 30687632), (1048, 19179770), (1310, 15343816), (2096, 9589885), (2620, 7671908), (5240, 3835954), (10480, 1917977)]