1330421140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{641}}^1\times {\mathrm{661}}^1$

素因数の和:1468

約数の個数: 48

約数和(自身を含む): 2820326544

約数和(自身を除く): 1489905404

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 641, 661, 785, 1282, 1322, 1570, 2564, 2644, 3140, 3205, 3305, 6410, 6610, 12820, 13220, 100637, 103777, 201274, 207554, 402548, 415108, 423701, 503185, 518885, 847402, 1006370, 1037770, 1694804, 2012740, 2075540, 2118505, 4237010, 8474020, 66521057, 133042114, 266084228, 332605285, 665210570, 1330421140]

約数ペア:

[(1, 1330421140), (2, 665210570), (4, 332605285), (5, 266084228), (10, 133042114), (20, 66521057), (157, 8474020), (314, 4237010), (628, 2118505), (641, 2075540), (661, 2012740), (785, 1694804), (1282, 1037770), (1322, 1006370), (1570, 847402), (2564, 518885), (2644, 503185), (3140, 423701), (3205, 415108), (3305, 402548), (6410, 207554), (6610, 201274), (12820, 103777), (13220, 100637)]