80415220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211619}}^1$

素因数の和:211647

約数の個数: 24

約数和(自身を含む): 177760800

約数和(自身を除く): 97345580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 211619, 423238, 846476, 1058095, 2116190, 4020761, 4232380, 8041522, 16083044, 20103805, 40207610, 80415220]

約数ペア:

[(1, 80415220), (2, 40207610), (4, 20103805), (5, 16083044), (10, 8041522), (19, 4232380), (20, 4020761), (38, 2116190), (76, 1058095), (95, 846476), (190, 423238), (380, 211619)]