20715678710

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1\times {\mathrm{71161}}^1$

素因数の和:71888

約数の個数: 32

約数和(自身を含む): 38212286112

約数和(自身を除く): 17496607402

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 677, 1354, 3385, 6770, 29111, 58222, 71161, 142322, 145555, 291110, 355805, 711610, 3059923, 6119846, 15299615, 30599230, 48175997, 96351994, 240879985, 481759970, 2071567871, 4143135742, 10357839355, 20715678710]

約数ペア:

[(1, 20715678710), (2, 10357839355), (5, 4143135742), (10, 2071567871), (43, 481759970), (86, 240879985), (215, 96351994), (430, 48175997), (677, 30599230), (1354, 15299615), (3385, 6119846), (6770, 3059923), (29111, 711610), (58222, 355805), (71161, 291110), (142322, 145555)]