19400030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1889}}^1$

素因数の和:1988

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 18702370

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 1889, 2054, 3778, 5135, 9445, 10270, 18890, 24557, 49114, 122785, 149231, 245570, 298462, 746155, 1492310, 1940003, 3880006, 9700015, 19400030]

約数ペア:

[(1, 19400030), (2, 9700015), (5, 3880006), (10, 1940003), (13, 1492310), (26, 746155), (65, 298462), (79, 245570), (130, 149231), (158, 122785), (395, 49114), (790, 24557), (1027, 18890), (1889, 10270), (2054, 9445), (3778, 5135)]