68337920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 194261760

約数和(自身を除く): 125923840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 128, 140, 145, 160, 203, 224, 232, 256, 263, 280, 290, 320, 406, 448, 464, 526, 560, 580, 640, 812, 896, 928, 1015, 1052, 1120, 1160, 1280, 1315, 1624, 1792, 1841, 1856, 2030, 2104, 2240, 2320, 2630, 3248, 3682, 3712, 4060, 4208, 4480, 4640, 5260, 6496, 7364, 7424, 7627, 8120, 8416, 8960, 9205, 9280, 10520, 12992, 14728, 15254, 16240, 16832, 18410, 18560, 21040, 25984, 29456, 30508, 32480, 33664, 36820, 37120, 38135, 42080, 51968, 53389, 58912, 61016, 64960, 67328, 73640, 76270, 84160, 106778, 117824, 122032, 129920, 147280, 152540, 168320, 213556, 235648, 244064, 259840, 266945, 294560, 305080, 336640, 427112, 471296, 488128, 533890, 589120, 610160, 854224, 976256, 1067780, 1178240, 1220320, 1708448, 1952512, 2135560, 2356480, 2440640, 3416896, 4271120, 4881280, 6833792, 8542240, 9762560, 13667584, 17084480, 34168960, 68337920]

約数ペア:

[(1, 68337920), (2, 34168960), (4, 17084480), (5, 13667584), (7, 9762560), (8, 8542240), (10, 6833792), (14, 4881280), (16, 4271120), (20, 3416896), (28, 2440640), (29, 2356480), (32, 2135560), (35, 1952512), (40, 1708448), (56, 1220320), (58, 1178240), (64, 1067780), (70, 976256), (80, 854224), (112, 610160), (116, 589120), (128, 533890), (140, 488128), (145, 471296), (160, 427112), (203, 336640), (224, 305080), (232, 294560), (256, 266945), (263, 259840), (280, 244064), (290, 235648), (320, 213556), (406, 168320), (448, 152540), (464, 147280), (526, 129920), (560, 122032), (580, 117824), (640, 106778), (812, 84160), (896, 76270), (928, 73640), (1015, 67328), (1052, 64960), (1120, 61016), (1160, 58912), (1280, 53389), (1315, 51968), (1624, 42080), (1792, 38135), (1841, 37120), (1856, 36820), (2030, 33664), (2104, 32480), (2240, 30508), (2320, 29456), (2630, 25984), (3248, 21040), (3682, 18560), (3712, 18410), (4060, 16832), (4208, 16240), (4480, 15254), (4640, 14728), (5260, 12992), (6496, 10520), (7364, 9280), (7424, 9205), (7627, 8960), (8120, 8416)]