991404648

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:672

約数の個数: 192

約数和(自身を含む): 3078129600

約数和(自身を除く): 2086724952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 19, 24, 26, 36, 38, 39, 52, 57, 72, 76, 78, 104, 107, 114, 117, 152, 156, 171, 214, 228, 234, 247, 312, 321, 342, 428, 456, 468, 494, 521, 642, 684, 741, 856, 936, 963, 988, 1042, 1284, 1368, 1391, 1482, 1563, 1926, 1976, 2033, 2084, 2223, 2568, 2782, 2964, 3126, 3852, 4066, 4168, 4173, 4446, 4689, 5564, 5928, 6099, 6252, 6773, 7704, 8132, 8346, 8892, 9378, 9899, 11128, 12198, 12504, 12519, 13546, 16264, 16692, 17784, 18297, 18756, 19798, 20319, 24396, 25038, 26429, 27092, 29697, 33384, 36594, 37512, 39596, 40638, 48792, 50076, 52858, 54184, 55747, 59394, 60957, 73188, 79192, 79287, 81276, 89091, 100152, 105716, 111494, 118788, 121914, 128687, 146376, 158574, 162552, 167241, 178182, 211432, 222988, 237576, 237861, 243828, 257374, 317148, 334482, 356364, 386061, 445976, 475722, 487656, 501723, 514748, 634296, 668964, 712728, 724711, 772122, 951444, 1003446, 1029496, 1059193, 1158183, 1337928, 1449422, 1544244, 1902888, 2006892, 2118386, 2174133, 2316366, 2898844, 3088488, 3177579, 4013784, 4236772, 4348266, 4632732, 5797688, 6355158, 6522399, 8473544, 8696532, 9265464, 9532737, 12710316, 13044798, 13769509, 17393064, 19065474, 25420632, 26089596, 27539018, 38130948, 41308527, 52179192, 55078036, 76261896, 82617054, 110156072, 123925581, 165234108, 247851162, 330468216, 495702324, 991404648]

約数ペア:

[(1, 991404648), (2, 495702324), (3, 330468216), (4, 247851162), (6, 165234108), (8, 123925581), (9, 110156072), (12, 82617054), (13, 76261896), (18, 55078036), (19, 52179192), (24, 41308527), (26, 38130948), (36, 27539018), (38, 26089596), (39, 25420632), (52, 19065474), (57, 17393064), (72, 13769509), (76, 13044798), (78, 12710316), (104, 9532737), (107, 9265464), (114, 8696532), (117, 8473544), (152, 6522399), (156, 6355158), (171, 5797688), (214, 4632732), (228, 4348266), (234, 4236772), (247, 4013784), (312, 3177579), (321, 3088488), (342, 2898844), (428, 2316366), (456, 2174133), (468, 2118386), (494, 2006892), (521, 1902888), (642, 1544244), (684, 1449422), (741, 1337928), (856, 1158183), (936, 1059193), (963, 1029496), (988, 1003446), (1042, 951444), (1284, 772122), (1368, 724711), (1391, 712728), (1482, 668964), (1563, 634296), (1926, 514748), (1976, 501723), (2033, 487656), (2084, 475722), (2223, 445976), (2568, 386061), (2782, 356364), (2964, 334482), (3126, 317148), (3852, 257374), (4066, 243828), (4168, 237861), (4173, 237576), (4446, 222988), (4689, 211432), (5564, 178182), (5928, 167241), (6099, 162552), (6252, 158574), (6773, 146376), (7704, 128687), (8132, 121914), (8346, 118788), (8892, 111494), (9378, 105716), (9899, 100152), (11128, 89091), (12198, 81276), (12504, 79287), (12519, 79192), (13546, 73188), (16264, 60957), (16692, 59394), (17784, 55747), (18297, 54184), (18756, 52858), (19798, 50076), (20319, 48792), (24396, 40638), (25038, 39596), (26429, 37512), (27092, 36594), (29697, 33384)]