18921879080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36388229}}^1$

素因数の和:36388253

約数の個数: 32

約数和(自身を含む): 45849169800

約数和(自身を除く): 26927290720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 36388229, 72776458, 145552916, 181941145, 291105832, 363882290, 473046977, 727764580, 946093954, 1455529160, 1892187908, 2365234885, 3784375816, 4730469770, 9460939540, 18921879080]

約数ペア:

[(1, 18921879080), (2, 9460939540), (4, 4730469770), (5, 3784375816), (8, 2365234885), (10, 1892187908), (13, 1455529160), (20, 946093954), (26, 727764580), (40, 473046977), (52, 363882290), (65, 291105832), (104, 181941145), (130, 145552916), (260, 72776458), (520, 36388229)]