80723780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2689}}^1$

素因数の和:2796

約数の個数: 48

約数和(自身を含む): 180768000

約数和(自身を除く): 100044220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 2689, 3002, 5378, 6004, 7505, 10756, 13445, 15010, 26890, 30020, 51091, 53780, 102182, 204364, 212431, 255455, 424862, 510910, 849724, 1021820, 1062155, 2124310, 4036189, 4248620, 8072378, 16144756, 20180945, 40361890, 80723780]

約数ペア:

[(1, 80723780), (2, 40361890), (4, 20180945), (5, 16144756), (10, 8072378), (19, 4248620), (20, 4036189), (38, 2124310), (76, 1062155), (79, 1021820), (95, 849724), (158, 510910), (190, 424862), (316, 255455), (380, 212431), (395, 204364), (790, 102182), (1501, 53780), (1580, 51091), (2689, 30020), (3002, 26890), (5378, 15010), (6004, 13445), (7505, 10756)]