20657312

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:190

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 28113760

約数列:

[1, 2, 4, 8, 13, 16, 17, 23, 26, 32, 34, 46, 52, 68, 92, 104, 127, 136, 184, 208, 221, 254, 272, 299, 368, 391, 416, 442, 508, 544, 598, 736, 782, 884, 1016, 1196, 1564, 1651, 1768, 2032, 2159, 2392, 2921, 3128, 3302, 3536, 4064, 4318, 4784, 5083, 5842, 6256, 6604, 7072, 8636, 9568, 10166, 11684, 12512, 13208, 17272, 20332, 23368, 26416, 28067, 34544, 37973, 40664, 46736, 49657, 52832, 56134, 69088, 75946, 81328, 93472, 99314, 112268, 151892, 162656, 198628, 224536, 303784, 397256, 449072, 607568, 645541, 794512, 898144, 1215136, 1291082, 1589024, 2582164, 5164328, 10328656, 20657312]

約数ペア:

[(1, 20657312), (2, 10328656), (4, 5164328), (8, 2582164), (13, 1589024), (16, 1291082), (17, 1215136), (23, 898144), (26, 794512), (32, 645541), (34, 607568), (46, 449072), (52, 397256), (68, 303784), (92, 224536), (104, 198628), (127, 162656), (136, 151892), (184, 112268), (208, 99314), (221, 93472), (254, 81328), (272, 75946), (299, 69088), (368, 56134), (391, 52832), (416, 49657), (442, 46736), (508, 40664), (544, 37973), (598, 34544), (736, 28067), (782, 26416), (884, 23368), (1016, 20332), (1196, 17272), (1564, 13208), (1651, 12512), (1768, 11684), (2032, 10166), (2159, 9568), (2392, 8636), (2921, 7072), (3128, 6604), (3302, 6256), (3536, 5842), (4064, 5083), (4318, 4784)]