128130620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{463}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 274313088

約数和(自身を除く): 146182468

約数列:

[1, 2, 4, 5, 10, 20, 101, 137, 202, 274, 404, 463, 505, 548, 685, 926, 1010, 1370, 1852, 2020, 2315, 2740, 4630, 9260, 13837, 27674, 46763, 55348, 63431, 69185, 93526, 126862, 138370, 187052, 233815, 253724, 276740, 317155, 467630, 634310, 935260, 1268620, 6406531, 12813062, 25626124, 32032655, 64065310, 128130620]

約数ペア:

[(1, 128130620), (2, 64065310), (4, 32032655), (5, 25626124), (10, 12813062), (20, 6406531), (101, 1268620), (137, 935260), (202, 634310), (274, 467630), (404, 317155), (463, 276740), (505, 253724), (548, 233815), (685, 187052), (926, 138370), (1010, 126862), (1370, 93526), (1852, 69185), (2020, 63431), (2315, 55348), (2740, 46763), (4630, 27674), (9260, 13837)]