78899975

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2411}}^1$

素因数の和:2456

約数の個数: 48

約数和(自身を含む): 129206016

約数和(自身を除く): 50306041

約数列:

[1, 5, 7, 11, 17, 25, 35, 55, 77, 85, 119, 175, 187, 275, 385, 425, 595, 935, 1309, 1925, 2411, 2975, 4675, 6545, 12055, 16877, 26521, 32725, 40987, 60275, 84385, 132605, 185647, 204935, 286909, 421925, 450857, 663025, 928235, 1024675, 1434545, 2254285, 3155999, 4641175, 7172725, 11271425, 15779995, 78899975]

約数ペア:

[(1, 78899975), (5, 15779995), (7, 11271425), (11, 7172725), (17, 4641175), (25, 3155999), (35, 2254285), (55, 1434545), (77, 1024675), (85, 928235), (119, 663025), (175, 450857), (187, 421925), (275, 286909), (385, 204935), (425, 185647), (595, 132605), (935, 84385), (1309, 60275), (1925, 40987), (2411, 32725), (2975, 26521), (4675, 16877), (6545, 12055)]