1211894620

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1\times {\mathrm{1663}}^1$

素因数の和:2194

約数の個数: 48

約数和(自身を含む): 2583060480

約数和(自身を除く): 1371165860

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 439, 830, 878, 1660, 1663, 1756, 2195, 3326, 4390, 6652, 8315, 8780, 16630, 33260, 36437, 72874, 138029, 145748, 182185, 276058, 364370, 552116, 690145, 728740, 730057, 1380290, 1460114, 2760580, 2920228, 3650285, 7300570, 14601140, 60594731, 121189462, 242378924, 302973655, 605947310, 1211894620]

約数ペア:

[(1, 1211894620), (2, 605947310), (4, 302973655), (5, 242378924), (10, 121189462), (20, 60594731), (83, 14601140), (166, 7300570), (332, 3650285), (415, 2920228), (439, 2760580), (830, 1460114), (878, 1380290), (1660, 730057), (1663, 728740), (1756, 690145), (2195, 552116), (3326, 364370), (4390, 276058), (6652, 182185), (8315, 145748), (8780, 138029), (16630, 72874), (33260, 36437)]