20454048

素因数分解:

$2^5\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 144

約数和(自身を含む): 62899200

約数和(自身を除く): 42445152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 31, 32, 36, 48, 58, 62, 72, 79, 87, 93, 96, 116, 124, 144, 158, 174, 186, 232, 237, 248, 261, 279, 288, 316, 348, 372, 464, 474, 496, 522, 558, 632, 696, 711, 744, 899, 928, 948, 992, 1044, 1116, 1264, 1392, 1422, 1488, 1798, 1896, 2088, 2232, 2291, 2449, 2528, 2697, 2784, 2844, 2976, 3596, 3792, 4176, 4464, 4582, 4898, 5394, 5688, 6873, 7192, 7347, 7584, 8091, 8352, 8928, 9164, 9796, 10788, 11376, 13746, 14384, 14694, 16182, 18328, 19592, 20619, 21576, 22041, 22752, 27492, 28768, 29388, 32364, 36656, 39184, 41238, 43152, 44082, 54984, 58776, 64728, 71021, 73312, 78368, 82476, 86304, 88164, 109968, 117552, 129456, 142042, 164952, 176328, 213063, 219936, 235104, 258912, 284084, 329904, 352656, 426126, 568168, 639189, 659808, 705312, 852252, 1136336, 1278378, 1704504, 2272672, 2556756, 3409008, 5113512, 6818016, 10227024, 20454048]

約数ペア:

[(1, 20454048), (2, 10227024), (3, 6818016), (4, 5113512), (6, 3409008), (8, 2556756), (9, 2272672), (12, 1704504), (16, 1278378), (18, 1136336), (24, 852252), (29, 705312), (31, 659808), (32, 639189), (36, 568168), (48, 426126), (58, 352656), (62, 329904), (72, 284084), (79, 258912), (87, 235104), (93, 219936), (96, 213063), (116, 176328), (124, 164952), (144, 142042), (158, 129456), (174, 117552), (186, 109968), (232, 88164), (237, 86304), (248, 82476), (261, 78368), (279, 73312), (288, 71021), (316, 64728), (348, 58776), (372, 54984), (464, 44082), (474, 43152), (496, 41238), (522, 39184), (558, 36656), (632, 32364), (696, 29388), (711, 28768), (744, 27492), (899, 22752), (928, 22041), (948, 21576), (992, 20619), (1044, 19592), (1116, 18328), (1264, 16182), (1392, 14694), (1422, 14384), (1488, 13746), (1798, 11376), (1896, 10788), (2088, 9796), (2232, 9164), (2291, 8928), (2449, 8352), (2528, 8091), (2697, 7584), (2784, 7347), (2844, 7192), (2976, 6873), (3596, 5688), (3792, 5394), (4176, 4898), (4464, 4582)]