20126000

素因数分解:

$2^4\times 5^3\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:399

約数の個数: 80

約数和(自身を含む): 50487840

約数和(自身を除く): 30361840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 125, 145, 200, 232, 250, 290, 347, 400, 464, 500, 580, 694, 725, 1000, 1160, 1388, 1450, 1735, 2000, 2320, 2776, 2900, 3470, 3625, 5552, 5800, 6940, 7250, 8675, 10063, 11600, 13880, 14500, 17350, 20126, 27760, 29000, 34700, 40252, 43375, 50315, 58000, 69400, 80504, 86750, 100630, 138800, 161008, 173500, 201260, 251575, 347000, 402520, 503150, 694000, 805040, 1006300, 1257875, 2012600, 2515750, 4025200, 5031500, 10063000, 20126000]

約数ペア:

[(1, 20126000), (2, 10063000), (4, 5031500), (5, 4025200), (8, 2515750), (10, 2012600), (16, 1257875), (20, 1006300), (25, 805040), (29, 694000), (40, 503150), (50, 402520), (58, 347000), (80, 251575), (100, 201260), (116, 173500), (125, 161008), (145, 138800), (200, 100630), (232, 86750), (250, 80504), (290, 69400), (347, 58000), (400, 50315), (464, 43375), (500, 40252), (580, 34700), (694, 29000), (725, 27760), (1000, 20126), (1160, 17350), (1388, 14500), (1450, 13880), (1735, 11600), (2000, 10063), (2320, 8675), (2776, 7250), (2900, 6940), (3470, 5800), (3625, 5552)]