397581408

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^2$

素因数の和:198

約数の個数: 216

約数和(自身を含む): 1338455664

約数和(自身を除く): 940874256

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 53, 56, 61, 63, 72, 84, 96, 106, 112, 122, 126, 144, 159, 168, 183, 212, 224, 244, 252, 288, 318, 336, 366, 371, 424, 427, 477, 488, 504, 549, 636, 672, 732, 742, 848, 854, 954, 976, 1008, 1098, 1113, 1272, 1281, 1464, 1484, 1696, 1708, 1908, 1952, 2016, 2196, 2226, 2544, 2562, 2928, 2968, 3233, 3339, 3416, 3721, 3816, 3843, 4392, 4452, 5088, 5124, 5856, 5936, 6466, 6678, 6832, 7442, 7632, 7686, 8784, 8904, 9699, 10248, 11163, 11872, 12932, 13356, 13664, 14884, 15264, 15372, 17568, 17808, 19398, 20496, 22326, 22631, 25864, 26047, 26712, 29097, 29768, 30744, 33489, 35616, 38796, 40992, 44652, 45262, 51728, 52094, 53424, 58194, 59536, 61488, 66978, 67893, 77592, 78141, 89304, 90524, 103456, 104188, 106848, 116388, 119072, 122976, 133956, 135786, 155184, 156282, 178608, 181048, 197213, 203679, 208376, 232776, 234423, 267912, 271572, 310368, 312564, 357216, 362096, 394426, 407358, 416752, 465552, 468846, 535824, 543144, 591639, 625128, 724192, 788852, 814716, 833504, 931104, 937692, 1071648, 1086288, 1183278, 1250256, 1380491, 1577704, 1629432, 1774917, 1875384, 2172576, 2366556, 2500512, 2760982, 3155408, 3258864, 3549834, 3750768, 4141473, 4733112, 5521964, 6310816, 6517728, 7099668, 7501536, 8282946, 9466224, 11043928, 12424419, 14199336, 16565892, 18932448, 22087856, 24848838, 28398672, 33131784, 44175712, 49697676, 56797344, 66263568, 99395352, 132527136, 198790704, 397581408]

約数ペア:

[(1, 397581408), (2, 198790704), (3, 132527136), (4, 99395352), (6, 66263568), (7, 56797344), (8, 49697676), (9, 44175712), (12, 33131784), (14, 28398672), (16, 24848838), (18, 22087856), (21, 18932448), (24, 16565892), (28, 14199336), (32, 12424419), (36, 11043928), (42, 9466224), (48, 8282946), (53, 7501536), (56, 7099668), (61, 6517728), (63, 6310816), (72, 5521964), (84, 4733112), (96, 4141473), (106, 3750768), (112, 3549834), (122, 3258864), (126, 3155408), (144, 2760982), (159, 2500512), (168, 2366556), (183, 2172576), (212, 1875384), (224, 1774917), (244, 1629432), (252, 1577704), (288, 1380491), (318, 1250256), (336, 1183278), (366, 1086288), (371, 1071648), (424, 937692), (427, 931104), (477, 833504), (488, 814716), (504, 788852), (549, 724192), (636, 625128), (672, 591639), (732, 543144), (742, 535824), (848, 468846), (854, 465552), (954, 416752), (976, 407358), (1008, 394426), (1098, 362096), (1113, 357216), (1272, 312564), (1281, 310368), (1464, 271572), (1484, 267912), (1696, 234423), (1708, 232776), (1908, 208376), (1952, 203679), (2016, 197213), (2196, 181048), (2226, 178608), (2544, 156282), (2562, 155184), (2928, 135786), (2968, 133956), (3233, 122976), (3339, 119072), (3416, 116388), (3721, 106848), (3816, 104188), (3843, 103456), (4392, 90524), (4452, 89304), (5088, 78141), (5124, 77592), (5856, 67893), (5936, 66978), (6466, 61488), (6678, 59536), (6832, 58194), (7442, 53424), (7632, 52094), (7686, 51728), (8784, 45262), (8904, 44652), (9699, 40992), (10248, 38796), (11163, 35616), (11872, 33489), (12932, 30744), (13356, 29768), (13664, 29097), (14884, 26712), (15264, 26047), (15372, 25864), (17568, 22631), (17808, 22326), (19398, 20496)]