81541728

素因数分解:

$2^5\times 3^4\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:378

約数の個数: 120

約数和(自身を含む): 242533368

約数和(自身を除く): 160991640

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 163, 193, 216, 288, 324, 326, 386, 432, 489, 579, 648, 652, 772, 864, 978, 1158, 1296, 1304, 1467, 1544, 1737, 1956, 2316, 2592, 2608, 2934, 3088, 3474, 3912, 4401, 4632, 5211, 5216, 5868, 6176, 6948, 7824, 8802, 9264, 10422, 11736, 13203, 13896, 15633, 15648, 17604, 18528, 20844, 23472, 26406, 27792, 31266, 31459, 35208, 41688, 46944, 52812, 55584, 62532, 62918, 70416, 83376, 94377, 105624, 125064, 125836, 140832, 166752, 188754, 211248, 250128, 251672, 283131, 377508, 422496, 500256, 503344, 566262, 755016, 849393, 1006688, 1132524, 1510032, 1698786, 2265048, 2548179, 3020064, 3397572, 4530096, 5096358, 6795144, 9060192, 10192716, 13590288, 20385432, 27180576, 40770864, 81541728]

約数ペア:

[(1, 81541728), (2, 40770864), (3, 27180576), (4, 20385432), (6, 13590288), (8, 10192716), (9, 9060192), (12, 6795144), (16, 5096358), (18, 4530096), (24, 3397572), (27, 3020064), (32, 2548179), (36, 2265048), (48, 1698786), (54, 1510032), (72, 1132524), (81, 1006688), (96, 849393), (108, 755016), (144, 566262), (162, 503344), (163, 500256), (193, 422496), (216, 377508), (288, 283131), (324, 251672), (326, 250128), (386, 211248), (432, 188754), (489, 166752), (579, 140832), (648, 125836), (652, 125064), (772, 105624), (864, 94377), (978, 83376), (1158, 70416), (1296, 62918), (1304, 62532), (1467, 55584), (1544, 52812), (1737, 46944), (1956, 41688), (2316, 35208), (2592, 31459), (2608, 31266), (2934, 27792), (3088, 26406), (3474, 23472), (3912, 20844), (4401, 18528), (4632, 17604), (5211, 15648), (5216, 15633), (5868, 13896), (6176, 13203), (6948, 11736), (7824, 10422), (8802, 9264)]