391405960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:188

約数の個数: 192

約数和(自身を含む): 1054892160

約数和(自身を除く): 663486200

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 67, 68, 71, 85, 88, 110, 121, 134, 136, 142, 170, 187, 220, 242, 268, 284, 335, 340, 355, 374, 440, 484, 536, 568, 605, 670, 680, 710, 737, 748, 781, 935, 968, 1139, 1207, 1210, 1340, 1420, 1474, 1496, 1562, 1870, 2057, 2278, 2414, 2420, 2680, 2840, 2948, 3124, 3685, 3740, 3905, 4114, 4556, 4757, 4828, 4840, 5695, 5896, 6035, 6248, 7370, 7480, 7810, 8107, 8228, 8591, 9112, 9514, 9656, 10285, 11390, 12070, 12529, 13277, 14740, 15620, 16214, 16456, 17182, 19028, 20570, 22780, 23785, 24140, 25058, 26554, 29480, 31240, 32428, 34364, 38056, 40535, 41140, 42955, 45560, 47570, 48280, 50116, 52327, 53108, 62645, 64856, 66385, 68728, 80869, 81070, 82280, 85910, 95140, 100232, 104654, 106216, 125290, 132770, 137819, 146047, 161738, 162140, 171820, 190280, 209308, 250580, 261635, 265540, 275638, 292094, 323476, 324280, 343640, 404345, 418616, 501160, 523270, 531080, 551276, 575597, 584188, 646952, 689095, 730235, 808690, 889559, 1046540, 1102552, 1151194, 1168376, 1378190, 1460470, 1617380, 1779118, 2093080, 2302388, 2756380, 2877985, 2920940, 3234760, 3558236, 4447795, 4604776, 5512760, 5755970, 5841880, 7116472, 8895590, 9785149, 11511940, 17791180, 19570298, 23023880, 35582360, 39140596, 48925745, 78281192, 97851490, 195702980, 391405960]

約数ペア:

[(1, 391405960), (2, 195702980), (4, 97851490), (5, 78281192), (8, 48925745), (10, 39140596), (11, 35582360), (17, 23023880), (20, 19570298), (22, 17791180), (34, 11511940), (40, 9785149), (44, 8895590), (55, 7116472), (67, 5841880), (68, 5755970), (71, 5512760), (85, 4604776), (88, 4447795), (110, 3558236), (121, 3234760), (134, 2920940), (136, 2877985), (142, 2756380), (170, 2302388), (187, 2093080), (220, 1779118), (242, 1617380), (268, 1460470), (284, 1378190), (335, 1168376), (340, 1151194), (355, 1102552), (374, 1046540), (440, 889559), (484, 808690), (536, 730235), (568, 689095), (605, 646952), (670, 584188), (680, 575597), (710, 551276), (737, 531080), (748, 523270), (781, 501160), (935, 418616), (968, 404345), (1139, 343640), (1207, 324280), (1210, 323476), (1340, 292094), (1420, 275638), (1474, 265540), (1496, 261635), (1562, 250580), (1870, 209308), (2057, 190280), (2278, 171820), (2414, 162140), (2420, 161738), (2680, 146047), (2840, 137819), (2948, 132770), (3124, 125290), (3685, 106216), (3740, 104654), (3905, 100232), (4114, 95140), (4556, 85910), (4757, 82280), (4828, 81070), (4840, 80869), (5695, 68728), (5896, 66385), (6035, 64856), (6248, 62645), (7370, 53108), (7480, 52327), (7810, 50116), (8107, 48280), (8228, 47570), (8591, 45560), (9112, 42955), (9514, 41140), (9656, 40535), (10285, 38056), (11390, 34364), (12070, 32428), (12529, 31240), (13277, 29480), (14740, 26554), (15620, 25058), (16214, 24140), (16456, 23785), (17182, 22780), (19028, 20570)]