78855880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53281}}^1$

素因数の和:53329

約数の個数: 32

約数和(自身を含む): 182224440

約数和(自身を除く): 103368560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 53281, 106562, 213124, 266405, 426248, 532810, 1065620, 1971397, 2131240, 3942794, 7885588, 9856985, 15771176, 19713970, 39427940, 78855880]

約数ペア:

[(1, 78855880), (2, 39427940), (4, 19713970), (5, 15771176), (8, 9856985), (10, 7885588), (20, 3942794), (37, 2131240), (40, 1971397), (74, 1065620), (148, 532810), (185, 426248), (296, 266405), (370, 213124), (740, 106562), (1480, 53281)]