87777172

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{439}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 181646080

約数和(自身を除く): 93868908

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 193, 259, 386, 439, 518, 772, 878, 1036, 1351, 1756, 2702, 3073, 5404, 6146, 7141, 12292, 14282, 16243, 28564, 32486, 49987, 64972, 84727, 99974, 113701, 169454, 199948, 227402, 338908, 454804, 593089, 1186178, 2372356, 3134899, 6269798, 12539596, 21944293, 43888586, 87777172]

約数ペア:

[(1, 87777172), (2, 43888586), (4, 21944293), (7, 12539596), (14, 6269798), (28, 3134899), (37, 2372356), (74, 1186178), (148, 593089), (193, 454804), (259, 338908), (386, 227402), (439, 199948), (518, 169454), (772, 113701), (878, 99974), (1036, 84727), (1351, 64972), (1756, 49987), (2702, 32486), (3073, 28564), (5404, 16243), (6146, 14282), (7141, 12292)]