139291280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{91639}}^1$

素因数の和:91671

約数の個数: 40

約数和(自身を含む): 340900800

約数和(自身を除く): 201609520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 91639, 183278, 366556, 458195, 733112, 916390, 1466224, 1741141, 1832780, 3482282, 3665560, 6964564, 7331120, 8705705, 13929128, 17411410, 27858256, 34822820, 69645640, 139291280]

約数ペア:

[(1, 139291280), (2, 69645640), (4, 34822820), (5, 27858256), (8, 17411410), (10, 13929128), (16, 8705705), (19, 7331120), (20, 6964564), (38, 3665560), (40, 3482282), (76, 1832780), (80, 1741141), (95, 1466224), (152, 916390), (190, 733112), (304, 458195), (380, 366556), (760, 183278), (1520, 91639)]