20474784

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:331

約数の個数: 144

約数和(自身を含む): 66515904

約数和(自身を除く): 46041120

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 23, 24, 32, 33, 36, 44, 46, 48, 66, 69, 72, 88, 92, 96, 99, 132, 138, 144, 176, 184, 198, 207, 253, 264, 276, 281, 288, 352, 368, 396, 414, 506, 528, 552, 562, 736, 759, 792, 828, 843, 1012, 1056, 1104, 1124, 1518, 1584, 1656, 1686, 2024, 2208, 2248, 2277, 2529, 3036, 3091, 3168, 3312, 3372, 4048, 4496, 4554, 5058, 6072, 6182, 6463, 6624, 6744, 8096, 8992, 9108, 9273, 10116, 12144, 12364, 12926, 13488, 18216, 18546, 19389, 20232, 24288, 24728, 25852, 26976, 27819, 36432, 37092, 38778, 40464, 49456, 51704, 55638, 58167, 71093, 72864, 74184, 77556, 80928, 98912, 103408, 111276, 116334, 142186, 148368, 155112, 206816, 213279, 222552, 232668, 284372, 296736, 310224, 426558, 445104, 465336, 568744, 620448, 639837, 853116, 890208, 930672, 1137488, 1279674, 1706232, 1861344, 2274976, 2559348, 3412464, 5118696, 6824928, 10237392, 20474784]

約数ペア:

[(1, 20474784), (2, 10237392), (3, 6824928), (4, 5118696), (6, 3412464), (8, 2559348), (9, 2274976), (11, 1861344), (12, 1706232), (16, 1279674), (18, 1137488), (22, 930672), (23, 890208), (24, 853116), (32, 639837), (33, 620448), (36, 568744), (44, 465336), (46, 445104), (48, 426558), (66, 310224), (69, 296736), (72, 284372), (88, 232668), (92, 222552), (96, 213279), (99, 206816), (132, 155112), (138, 148368), (144, 142186), (176, 116334), (184, 111276), (198, 103408), (207, 98912), (253, 80928), (264, 77556), (276, 74184), (281, 72864), (288, 71093), (352, 58167), (368, 55638), (396, 51704), (414, 49456), (506, 40464), (528, 38778), (552, 37092), (562, 36432), (736, 27819), (759, 26976), (792, 25852), (828, 24728), (843, 24288), (1012, 20232), (1056, 19389), (1104, 18546), (1124, 18216), (1518, 13488), (1584, 12926), (1656, 12364), (1686, 12144), (2024, 10116), (2208, 9273), (2248, 9108), (2277, 8992), (2529, 8096), (3036, 6744), (3091, 6624), (3168, 6463), (3312, 6182), (3372, 6072), (4048, 5058), (4496, 4554)]