78997156

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{503}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 162570240

約数和(自身を除く): 83573084

約数列:

[1, 2, 4, 7, 14, 28, 71, 79, 142, 158, 284, 316, 497, 503, 553, 994, 1006, 1106, 1988, 2012, 2212, 3521, 5609, 7042, 11218, 14084, 22436, 35713, 39263, 39737, 71426, 78526, 79474, 142852, 157052, 158948, 249991, 278159, 499982, 556318, 999964, 1112636, 2821327, 5642654, 11285308, 19749289, 39498578, 78997156]

約数ペア:

[(1, 78997156), (2, 39498578), (4, 19749289), (7, 11285308), (14, 5642654), (28, 2821327), (71, 1112636), (79, 999964), (142, 556318), (158, 499982), (284, 278159), (316, 249991), (497, 158948), (503, 157052), (553, 142852), (994, 79474), (1006, 78526), (1106, 71426), (1988, 39737), (2012, 39263), (2212, 35713), (3521, 22436), (5609, 14084), (7042, 11218)]