40020002

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{25621}}^1$

素因数の和:25705

約数の個数: 16

約数和(自身を含む): 66412224

約数和(自身を除く): 26392222

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 25621, 51242, 281831, 563662, 1819091, 3638182, 20010001, 40020002]

約数ペア:

[(1, 40020002), (2, 20010001), (11, 3638182), (22, 1819091), (71, 563662), (142, 281831), (781, 51242), (1562, 25621)]