71154680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1009}}^1$

素因数の和:1104

約数の個数: 64

約数和(自身を含む): 167983200

約数和(自身を除く): 96828520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 820, 860, 1009, 1640, 1720, 1763, 2018, 3526, 4036, 5045, 7052, 8072, 8815, 10090, 14104, 17630, 20180, 35260, 40360, 41369, 43387, 70520, 82738, 86774, 165476, 173548, 206845, 216935, 330952, 347096, 413690, 433870, 827380, 867740, 1654760, 1735480, 1778867, 3557734, 7115468, 8894335, 14230936, 17788670, 35577340, 71154680]

約数ペア:

[(1, 71154680), (2, 35577340), (4, 17788670), (5, 14230936), (8, 8894335), (10, 7115468), (20, 3557734), (40, 1778867), (41, 1735480), (43, 1654760), (82, 867740), (86, 827380), (164, 433870), (172, 413690), (205, 347096), (215, 330952), (328, 216935), (344, 206845), (410, 173548), (430, 165476), (820, 86774), (860, 82738), (1009, 70520), (1640, 43387), (1720, 41369), (1763, 40360), (2018, 35260), (3526, 20180), (4036, 17630), (5045, 14104), (7052, 10090), (8072, 8815)]