668648456

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 1596672000

約数和(自身を除く): 928023544

約数列:

[1, 2, 4, 7, 8, 14, 19, 23, 28, 38, 46, 56, 76, 89, 92, 133, 152, 161, 178, 184, 266, 307, 322, 356, 437, 532, 614, 623, 644, 712, 874, 1064, 1228, 1246, 1288, 1691, 1748, 2047, 2149, 2456, 2492, 3059, 3382, 3496, 4094, 4298, 4984, 5833, 6118, 6764, 7061, 8188, 8596, 11666, 11837, 12236, 13528, 14122, 14329, 16376, 17192, 23332, 23674, 24472, 27323, 28244, 28658, 38893, 40831, 46664, 47348, 49427, 54646, 56488, 57316, 77786, 81662, 94696, 98854, 109292, 114632, 134159, 155572, 163324, 191261, 197708, 218584, 268318, 272251, 311144, 326648, 382522, 395416, 519137, 536636, 544502, 628429, 765044, 939113, 1038274, 1073272, 1089004, 1256858, 1530088, 1878226, 2076548, 2178008, 2513716, 3633959, 3756452, 4153096, 4399003, 5027432, 7267918, 7512904, 8798006, 11940151, 14535836, 17596012, 23880302, 29071672, 35192024, 47760604, 83581057, 95521208, 167162114, 334324228, 668648456]

約数ペア:

[(1, 668648456), (2, 334324228), (4, 167162114), (7, 95521208), (8, 83581057), (14, 47760604), (19, 35192024), (23, 29071672), (28, 23880302), (38, 17596012), (46, 14535836), (56, 11940151), (76, 8798006), (89, 7512904), (92, 7267918), (133, 5027432), (152, 4399003), (161, 4153096), (178, 3756452), (184, 3633959), (266, 2513716), (307, 2178008), (322, 2076548), (356, 1878226), (437, 1530088), (532, 1256858), (614, 1089004), (623, 1073272), (644, 1038274), (712, 939113), (874, 765044), (1064, 628429), (1228, 544502), (1246, 536636), (1288, 519137), (1691, 395416), (1748, 382522), (2047, 326648), (2149, 311144), (2456, 272251), (2492, 268318), (3059, 218584), (3382, 197708), (3496, 191261), (4094, 163324), (4298, 155572), (4984, 134159), (5833, 114632), (6118, 109292), (6764, 98854), (7061, 94696), (8188, 81662), (8596, 77786), (11666, 57316), (11837, 56488), (12236, 54646), (13528, 49427), (14122, 47348), (14329, 46664), (16376, 40831), (17192, 38893), (23332, 28658), (23674, 28244), (24472, 27323)]