20389968008

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{35897831}}^1$

素因数の和:35897908

約数の個数: 16

約数和(自身を含む): 38769658560

約数和(自身を除く): 18379690552

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 35897831, 71795662, 143591324, 287182648, 2548746001, 5097492002, 10194984004, 20389968008]

約数ペア:

[(1, 20389968008), (2, 10194984004), (4, 5097492002), (8, 2548746001), (71, 287182648), (142, 143591324), (284, 71795662), (568, 35897831)]