1290291235

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{288979}}^1$

素因数の和:289050

約数の個数: 16

約数和(自身を含む): 1664524800

約数和(自身を除く): 374233565

約数列:

[1, 5, 19, 47, 95, 235, 893, 4465, 288979, 1444895, 5490601, 13582013, 27453005, 67910065, 258058247, 1290291235]

約数ペア:

[(1, 1290291235), (5, 258058247), (19, 67910065), (47, 27453005), (95, 13582013), (235, 5490601), (893, 1444895), (4465, 288979)]