90765920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{81041}}^1$

素因数の和:81063

約数の個数: 48

約数和(自身を含む): 245071008

約数和(自身を除く): 154305088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 81041, 162082, 324164, 405205, 567287, 648328, 810410, 1134574, 1296656, 1620820, 2269148, 2593312, 2836435, 3241640, 4538296, 5672870, 6483280, 9076592, 11345740, 12966560, 18153184, 22691480, 45382960, 90765920]

約数ペア:

[(1, 90765920), (2, 45382960), (4, 22691480), (5, 18153184), (7, 12966560), (8, 11345740), (10, 9076592), (14, 6483280), (16, 5672870), (20, 4538296), (28, 3241640), (32, 2836435), (35, 2593312), (40, 2269148), (56, 1620820), (70, 1296656), (80, 1134574), (112, 810410), (140, 648328), (160, 567287), (224, 405205), (280, 324164), (560, 162082), (1120, 81041)]