68074720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:505

約数の個数: 144

約数和(自身を含む): 197361360

約数和(自身を除く): 129286640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 380, 392, 457, 490, 532, 560, 608, 665, 760, 784, 914, 931, 980, 1064, 1120, 1330, 1520, 1568, 1828, 1862, 1960, 2128, 2285, 2660, 3040, 3199, 3656, 3724, 3920, 4256, 4570, 4655, 5320, 6398, 7312, 7448, 7840, 8683, 9140, 9310, 10640, 12796, 14624, 14896, 15995, 17366, 18280, 18620, 21280, 22393, 25592, 29792, 31990, 34732, 36560, 37240, 43415, 44786, 51184, 60781, 63980, 69464, 73120, 74480, 86830, 89572, 102368, 111965, 121562, 127960, 138928, 148960, 173660, 179144, 223930, 243124, 255920, 277856, 303905, 347320, 358288, 425467, 447860, 486248, 511840, 607810, 694640, 716576, 850934, 895720, 972496, 1215620, 1389280, 1701868, 1791440, 1944992, 2127335, 2431240, 3403736, 3582880, 4254670, 4862480, 6807472, 8509340, 9724960, 13614944, 17018680, 34037360, 68074720]

約数ペア:

[(1, 68074720), (2, 34037360), (4, 17018680), (5, 13614944), (7, 9724960), (8, 8509340), (10, 6807472), (14, 4862480), (16, 4254670), (19, 3582880), (20, 3403736), (28, 2431240), (32, 2127335), (35, 1944992), (38, 1791440), (40, 1701868), (49, 1389280), (56, 1215620), (70, 972496), (76, 895720), (80, 850934), (95, 716576), (98, 694640), (112, 607810), (133, 511840), (140, 486248), (152, 447860), (160, 425467), (190, 358288), (196, 347320), (224, 303905), (245, 277856), (266, 255920), (280, 243124), (304, 223930), (380, 179144), (392, 173660), (457, 148960), (490, 138928), (532, 127960), (560, 121562), (608, 111965), (665, 102368), (760, 89572), (784, 86830), (914, 74480), (931, 73120), (980, 69464), (1064, 63980), (1120, 60781), (1330, 51184), (1520, 44786), (1568, 43415), (1828, 37240), (1862, 36560), (1960, 34732), (2128, 31990), (2285, 29792), (2660, 25592), (3040, 22393), (3199, 21280), (3656, 18620), (3724, 18280), (3920, 17366), (4256, 15995), (4570, 14896), (4655, 14624), (5320, 12796), (6398, 10640), (7312, 9310), (7448, 9140), (7840, 8683)]