81145216

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 173502000

約数和(自身を除く): 92356784

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 89, 128, 136, 178, 272, 356, 419, 544, 712, 838, 1088, 1424, 1513, 1676, 2176, 2848, 3026, 3352, 5696, 6052, 6704, 7123, 11392, 12104, 13408, 14246, 24208, 26816, 28492, 37291, 48416, 53632, 56984, 74582, 96832, 113968, 149164, 193664, 227936, 298328, 455872, 596656, 633947, 911744, 1193312, 1267894, 2386624, 2535788, 4773248, 5071576, 10143152, 20286304, 40572608, 81145216]

約数ペア:

[(1, 81145216), (2, 40572608), (4, 20286304), (8, 10143152), (16, 5071576), (17, 4773248), (32, 2535788), (34, 2386624), (64, 1267894), (68, 1193312), (89, 911744), (128, 633947), (136, 596656), (178, 455872), (272, 298328), (356, 227936), (419, 193664), (544, 149164), (712, 113968), (838, 96832), (1088, 74582), (1424, 56984), (1513, 53632), (1676, 48416), (2176, 37291), (2848, 28492), (3026, 26816), (3352, 24208), (5696, 14246), (6052, 13408), (6704, 12104), (7123, 11392)]