890678620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{201511}}^1$

素因数の和:201550

約数の個数: 48

約数和(自身を含む): 2132803008

約数和(自身を除く): 1242124388

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 201511, 403022, 806044, 1007555, 2015110, 2619643, 3425687, 4030220, 5239286, 6851374, 10478572, 13098215, 13702748, 17128435, 26196430, 34256870, 44533931, 52392860, 68513740, 89067862, 178135724, 222669655, 445339310, 890678620]

約数ペア:

[(1, 890678620), (2, 445339310), (4, 222669655), (5, 178135724), (10, 89067862), (13, 68513740), (17, 52392860), (20, 44533931), (26, 34256870), (34, 26196430), (52, 17128435), (65, 13702748), (68, 13098215), (85, 10478572), (130, 6851374), (170, 5239286), (221, 4030220), (260, 3425687), (340, 2619643), (442, 2015110), (884, 1007555), (1105, 806044), (2210, 403022), (4420, 201511)]