81785725

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 126206208

約数和(自身を除く): 44420483

約数列:

[1, 5, 7, 17, 25, 35, 37, 85, 119, 175, 185, 259, 425, 595, 629, 743, 925, 1295, 2975, 3145, 3715, 4403, 5201, 6475, 12631, 15725, 18575, 22015, 26005, 27491, 63155, 88417, 110075, 130025, 137455, 192437, 315775, 442085, 467347, 687275, 962185, 2210425, 2336735, 3271429, 4810925, 11683675, 16357145, 81785725]

約数ペア:

[(1, 81785725), (5, 16357145), (7, 11683675), (17, 4810925), (25, 3271429), (35, 2336735), (37, 2210425), (85, 962185), (119, 687275), (175, 467347), (185, 442085), (259, 315775), (425, 192437), (595, 137455), (629, 130025), (743, 110075), (925, 88417), (1295, 63155), (2975, 27491), (3145, 26005), (3715, 22015), (4403, 18575), (5201, 15725), (6475, 12631)]