19828780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52181}}^1$

素因数の和:52209

約数の個数: 24

約数和(自身を含む): 43832880

約数和(自身を除く): 24004100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 52181, 104362, 208724, 260905, 521810, 991439, 1043620, 1982878, 3965756, 4957195, 9914390, 19828780]

約数ペア:

[(1, 19828780), (2, 9914390), (4, 4957195), (5, 3965756), (10, 1982878), (19, 1043620), (20, 991439), (38, 521810), (76, 260905), (95, 208724), (190, 104362), (380, 52181)]