81321336

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 244576800

約数和(自身を除く): 163255464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 29, 34, 36, 51, 58, 68, 72, 79, 87, 102, 116, 136, 153, 158, 174, 204, 232, 237, 261, 306, 316, 348, 408, 474, 493, 522, 612, 632, 696, 711, 841, 948, 986, 1044, 1224, 1343, 1422, 1479, 1682, 1896, 1972, 2088, 2291, 2523, 2686, 2844, 2958, 3364, 3944, 4029, 4437, 4582, 5046, 5372, 5688, 5916, 6728, 6873, 7569, 8058, 8874, 9164, 10092, 10744, 11832, 12087, 13746, 14297, 15138, 16116, 17748, 18328, 20184, 20619, 24174, 27492, 28594, 30276, 32232, 35496, 38947, 41238, 42891, 48348, 54984, 57188, 60552, 66439, 77894, 82476, 85782, 96696, 114376, 116841, 128673, 132878, 155788, 164952, 171564, 199317, 233682, 257346, 265756, 311576, 343128, 350523, 398634, 467364, 514692, 531512, 597951, 701046, 797268, 934728, 1029384, 1129463, 1195902, 1402092, 1594536, 2258926, 2391804, 2804184, 3388389, 4517852, 4783608, 6776778, 9035704, 10165167, 13553556, 20330334, 27107112, 40660668, 81321336]

約数ペア:

[(1, 81321336), (2, 40660668), (3, 27107112), (4, 20330334), (6, 13553556), (8, 10165167), (9, 9035704), (12, 6776778), (17, 4783608), (18, 4517852), (24, 3388389), (29, 2804184), (34, 2391804), (36, 2258926), (51, 1594536), (58, 1402092), (68, 1195902), (72, 1129463), (79, 1029384), (87, 934728), (102, 797268), (116, 701046), (136, 597951), (153, 531512), (158, 514692), (174, 467364), (204, 398634), (232, 350523), (237, 343128), (261, 311576), (306, 265756), (316, 257346), (348, 233682), (408, 199317), (474, 171564), (493, 164952), (522, 155788), (612, 132878), (632, 128673), (696, 116841), (711, 114376), (841, 96696), (948, 85782), (986, 82476), (1044, 77894), (1224, 66439), (1343, 60552), (1422, 57188), (1479, 54984), (1682, 48348), (1896, 42891), (1972, 41238), (2088, 38947), (2291, 35496), (2523, 32232), (2686, 30276), (2844, 28594), (2958, 27492), (3364, 24174), (3944, 20619), (4029, 20184), (4437, 18328), (4582, 17748), (5046, 16116), (5372, 15138), (5688, 14297), (5916, 13746), (6728, 12087), (6873, 11832), (7569, 10744), (8058, 10092), (8874, 9164)]