67777780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 180182016

約数和(自身を除く): 112404236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 49, 62, 70, 92, 97, 98, 115, 124, 140, 155, 161, 194, 196, 217, 230, 245, 310, 322, 388, 434, 460, 485, 490, 620, 644, 679, 713, 805, 868, 970, 980, 1085, 1127, 1358, 1426, 1519, 1610, 1940, 2170, 2231, 2254, 2716, 2852, 3007, 3038, 3220, 3395, 3565, 4340, 4462, 4508, 4753, 4991, 5635, 6014, 6076, 6790, 7130, 7595, 8924, 9506, 9982, 11155, 11270, 12028, 13580, 14260, 15035, 15190, 15617, 19012, 19964, 21049, 22310, 22540, 23765, 24955, 30070, 30380, 31234, 34937, 42098, 44620, 47530, 49910, 60140, 62468, 69161, 69874, 78085, 84196, 95060, 99820, 105245, 109319, 138322, 139748, 147343, 156170, 174685, 210490, 218638, 276644, 294686, 312340, 345805, 349370, 420980, 437276, 484127, 546595, 589372, 691610, 698740, 736715, 968254, 1093190, 1383220, 1473430, 1936508, 2186380, 2420635, 2946860, 3388889, 4841270, 6777778, 9682540, 13555556, 16944445, 33888890, 67777780]

約数ペア:

[(1, 67777780), (2, 33888890), (4, 16944445), (5, 13555556), (7, 9682540), (10, 6777778), (14, 4841270), (20, 3388889), (23, 2946860), (28, 2420635), (31, 2186380), (35, 1936508), (46, 1473430), (49, 1383220), (62, 1093190), (70, 968254), (92, 736715), (97, 698740), (98, 691610), (115, 589372), (124, 546595), (140, 484127), (155, 437276), (161, 420980), (194, 349370), (196, 345805), (217, 312340), (230, 294686), (245, 276644), (310, 218638), (322, 210490), (388, 174685), (434, 156170), (460, 147343), (485, 139748), (490, 138322), (620, 109319), (644, 105245), (679, 99820), (713, 95060), (805, 84196), (868, 78085), (970, 69874), (980, 69161), (1085, 62468), (1127, 60140), (1358, 49910), (1426, 47530), (1519, 44620), (1610, 42098), (1940, 34937), (2170, 31234), (2231, 30380), (2254, 30070), (2716, 24955), (2852, 23765), (3007, 22540), (3038, 22310), (3220, 21049), (3395, 19964), (3565, 19012), (4340, 15617), (4462, 15190), (4508, 15035), (4753, 14260), (4991, 13580), (5635, 12028), (6014, 11270), (6076, 11155), (6790, 9982), (7130, 9506), (7595, 8924)]