1690240

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 4284000

約数和(自身を除く): 2593760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 139, 152, 160, 190, 278, 304, 320, 380, 556, 608, 640, 695, 760, 1112, 1216, 1390, 1520, 2224, 2432, 2641, 2780, 3040, 4448, 5282, 5560, 6080, 8896, 10564, 11120, 12160, 13205, 17792, 21128, 22240, 26410, 42256, 44480, 52820, 84512, 88960, 105640, 169024, 211280, 338048, 422560, 845120, 1690240]

約数ペア:

[(1, 1690240), (2, 845120), (4, 422560), (5, 338048), (8, 211280), (10, 169024), (16, 105640), (19, 88960), (20, 84512), (32, 52820), (38, 44480), (40, 42256), (64, 26410), (76, 22240), (80, 21128), (95, 17792), (128, 13205), (139, 12160), (152, 11120), (160, 10564), (190, 8896), (278, 6080), (304, 5560), (320, 5282), (380, 4448), (556, 3040), (608, 2780), (640, 2641), (695, 2432), (760, 2224), (1112, 1520), (1216, 1390)]