81045664

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21283}}^1$

素因数の和:21317

約数の個数: 48

約数和(自身を含む): 193088448

約数和(自身を除く): 112042784

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 476, 544, 952, 1904, 3808, 21283, 42566, 85132, 148981, 170264, 297962, 340528, 361811, 595924, 681056, 723622, 1191848, 1447244, 2383696, 2532677, 2894488, 4767392, 5065354, 5788976, 10130708, 11577952, 20261416, 40522832, 81045664]

約数ペア:

[(1, 81045664), (2, 40522832), (4, 20261416), (7, 11577952), (8, 10130708), (14, 5788976), (16, 5065354), (17, 4767392), (28, 2894488), (32, 2532677), (34, 2383696), (56, 1447244), (68, 1191848), (112, 723622), (119, 681056), (136, 595924), (224, 361811), (238, 340528), (272, 297962), (476, 170264), (544, 148981), (952, 85132), (1904, 42566), (3808, 21283)]