20761312

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{349}}^1$

素因数の和:396

約数の個数: 72

約数和(自身を含む): 48421800

約数和(自身を除く): 27660488

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 143, 169, 176, 208, 286, 338, 349, 352, 416, 572, 676, 698, 1144, 1352, 1396, 1859, 2288, 2704, 2792, 3718, 3839, 4537, 4576, 5408, 5584, 7436, 7678, 9074, 11168, 14872, 15356, 18148, 29744, 30712, 36296, 49907, 58981, 59488, 61424, 72592, 99814, 117962, 122848, 145184, 199628, 235924, 399256, 471848, 648791, 798512, 943696, 1297582, 1597024, 1887392, 2595164, 5190328, 10380656, 20761312]

約数ペア:

[(1, 20761312), (2, 10380656), (4, 5190328), (8, 2595164), (11, 1887392), (13, 1597024), (16, 1297582), (22, 943696), (26, 798512), (32, 648791), (44, 471848), (52, 399256), (88, 235924), (104, 199628), (143, 145184), (169, 122848), (176, 117962), (208, 99814), (286, 72592), (338, 61424), (349, 59488), (352, 58981), (416, 49907), (572, 36296), (676, 30712), (698, 29744), (1144, 18148), (1352, 15356), (1396, 14872), (1859, 11168), (2288, 9074), (2704, 7678), (2792, 7436), (3718, 5584), (3839, 5408), (4537, 4576)]