2781840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 8803008

約数和(自身を除く): 6021168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 67, 80, 120, 134, 173, 201, 240, 268, 335, 346, 402, 519, 536, 670, 692, 804, 865, 1005, 1038, 1072, 1340, 1384, 1608, 1730, 2010, 2076, 2595, 2680, 2768, 3216, 3460, 4020, 4152, 5190, 5360, 6920, 8040, 8304, 10380, 11591, 13840, 16080, 20760, 23182, 34773, 41520, 46364, 57955, 69546, 92728, 115910, 139092, 173865, 185456, 231820, 278184, 347730, 463640, 556368, 695460, 927280, 1390920, 2781840]

約数ペア:

[(1, 2781840), (2, 1390920), (3, 927280), (4, 695460), (5, 556368), (6, 463640), (8, 347730), (10, 278184), (12, 231820), (15, 185456), (16, 173865), (20, 139092), (24, 115910), (30, 92728), (40, 69546), (48, 57955), (60, 46364), (67, 41520), (80, 34773), (120, 23182), (134, 20760), (173, 16080), (201, 13840), (240, 11591), (268, 10380), (335, 8304), (346, 8040), (402, 6920), (519, 5360), (536, 5190), (670, 4152), (692, 4020), (804, 3460), (865, 3216), (1005, 2768), (1038, 2680), (1072, 2595), (1340, 2076), (1384, 2010), (1608, 1730)]