311777788

素因数分解:

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

素因数の和:192

約数の個数: 108

約数和(自身を含む): 691948992

約数和(自身を除く): 380171204

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 46, 49, 62, 92, 97, 98, 124, 161, 194, 196, 217, 322, 388, 434, 529, 644, 679, 713, 868, 1058, 1127, 1358, 1426, 1519, 2116, 2231, 2254, 2716, 2852, 3007, 3038, 3703, 4462, 4508, 4753, 4991, 6014, 6076, 7406, 8924, 9506, 9982, 12028, 14812, 15617, 16399, 19012, 19964, 21049, 25921, 31234, 32798, 34937, 42098, 51313, 51842, 62468, 65596, 69161, 69874, 84196, 102626, 103684, 109319, 114793, 138322, 139748, 147343, 205252, 218638, 229586, 276644, 294686, 359191, 437276, 459172, 484127, 589372, 718382, 803551, 968254, 1436764, 1590703, 1607102, 1936508, 2514337, 3181406, 3214204, 3388889, 5028674, 6362812, 6777778, 10057348, 11134921, 13555556, 22269842, 44539684, 77944447, 155888894, 311777788]

約数ペア:

[(1, 311777788), (2, 155888894), (4, 77944447), (7, 44539684), (14, 22269842), (23, 13555556), (28, 11134921), (31, 10057348), (46, 6777778), (49, 6362812), (62, 5028674), (92, 3388889), (97, 3214204), (98, 3181406), (124, 2514337), (161, 1936508), (194, 1607102), (196, 1590703), (217, 1436764), (322, 968254), (388, 803551), (434, 718382), (529, 589372), (644, 484127), (679, 459172), (713, 437276), (868, 359191), (1058, 294686), (1127, 276644), (1358, 229586), (1426, 218638), (1519, 205252), (2116, 147343), (2231, 139748), (2254, 138322), (2716, 114793), (2852, 109319), (3007, 103684), (3038, 102626), (3703, 84196), (4462, 69874), (4508, 69161), (4753, 65596), (4991, 62468), (6014, 51842), (6076, 51313), (7406, 42098), (8924, 34937), (9506, 32798), (9982, 31234), (12028, 25921), (14812, 21049), (15617, 19964), (16399, 19012)]