247177980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:406

約数の個数: 240

約数和(自身を含む): 901587456

約数和(自身を除く): 654409476

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 71, 81, 84, 90, 105, 108, 126, 135, 140, 142, 162, 180, 189, 210, 213, 252, 270, 284, 307, 315, 324, 355, 378, 405, 420, 426, 497, 540, 567, 614, 630, 639, 710, 756, 810, 852, 921, 945, 994, 1065, 1134, 1228, 1260, 1278, 1420, 1491, 1535, 1620, 1842, 1890, 1917, 1988, 2130, 2149, 2268, 2485, 2556, 2763, 2835, 2982, 3070, 3195, 3684, 3780, 3834, 4260, 4298, 4473, 4605, 4970, 5526, 5670, 5751, 5964, 6140, 6390, 6447, 7455, 7668, 8289, 8596, 8946, 9210, 9585, 9940, 10745, 11052, 11340, 11502, 12780, 12894, 13419, 13815, 14910, 16578, 17892, 18420, 19170, 19341, 21490, 21797, 22365, 23004, 24867, 25788, 26838, 27630, 28755, 29820, 32235, 33156, 38340, 38682, 40257, 41445, 42980, 43594, 44730, 49734, 53676, 55260, 57510, 58023, 64470, 65391, 67095, 77364, 80514, 82890, 87188, 89460, 96705, 99468, 108985, 115020, 116046, 124335, 128940, 130782, 134190, 152579, 161028, 165780, 174069, 193410, 196173, 201285, 217970, 232092, 248670, 261564, 268380, 290115, 305158, 326955, 348138, 386820, 392346, 402570, 435940, 457737, 497340, 580230, 588519, 610316, 653910, 696276, 762895, 784692, 805140, 870345, 915474, 980865, 1160460, 1177038, 1307820, 1373211, 1525790, 1740690, 1765557, 1830948, 1961730, 2288685, 2354076, 2746422, 2942595, 3051580, 3481380, 3531114, 3923460, 4119633, 4577370, 5492844, 5885190, 6866055, 7062228, 8239266, 8827785, 9154740, 11770380, 12358899, 13732110, 16478532, 17655570, 20598165, 24717798, 27464220, 35311140, 41196330, 49435596, 61794495, 82392660, 123588990, 247177980]

約数ペア:

[(1, 247177980), (2, 123588990), (3, 82392660), (4, 61794495), (5, 49435596), (6, 41196330), (7, 35311140), (9, 27464220), (10, 24717798), (12, 20598165), (14, 17655570), (15, 16478532), (18, 13732110), (20, 12358899), (21, 11770380), (27, 9154740), (28, 8827785), (30, 8239266), (35, 7062228), (36, 6866055), (42, 5885190), (45, 5492844), (54, 4577370), (60, 4119633), (63, 3923460), (70, 3531114), (71, 3481380), (81, 3051580), (84, 2942595), (90, 2746422), (105, 2354076), (108, 2288685), (126, 1961730), (135, 1830948), (140, 1765557), (142, 1740690), (162, 1525790), (180, 1373211), (189, 1307820), (210, 1177038), (213, 1160460), (252, 980865), (270, 915474), (284, 870345), (307, 805140), (315, 784692), (324, 762895), (355, 696276), (378, 653910), (405, 610316), (420, 588519), (426, 580230), (497, 497340), (540, 457737), (567, 435940), (614, 402570), (630, 392346), (639, 386820), (710, 348138), (756, 326955), (810, 305158), (852, 290115), (921, 268380), (945, 261564), (994, 248670), (1065, 232092), (1134, 217970), (1228, 201285), (1260, 196173), (1278, 193410), (1420, 174069), (1491, 165780), (1535, 161028), (1620, 152579), (1842, 134190), (1890, 130782), (1917, 128940), (1988, 124335), (2130, 116046), (2149, 115020), (2268, 108985), (2485, 99468), (2556, 96705), (2763, 89460), (2835, 87188), (2982, 82890), (3070, 80514), (3195, 77364), (3684, 67095), (3780, 65391), (3834, 64470), (4260, 58023), (4298, 57510), (4473, 55260), (4605, 53676), (4970, 49734), (5526, 44730), (5670, 43594), (5751, 42980), (5964, 41445), (6140, 40257), (6390, 38682), (6447, 38340), (7455, 33156), (7668, 32235), (8289, 29820), (8596, 28755), (8946, 27630), (9210, 26838), (9585, 25788), (9940, 24867), (10745, 23004), (11052, 22365), (11340, 21797), (11502, 21490), (12780, 19341), (12894, 19170), (13419, 18420), (13815, 17892), (14910, 16578)]