161731625

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:108

約数の個数: 72

約数和(自身を含む): 242046168

約数和(自身を除く): 80314543

約数列:

[1, 5, 11, 17, 25, 37, 55, 85, 121, 125, 185, 187, 275, 289, 407, 425, 605, 629, 925, 935, 1375, 1445, 2035, 2057, 2125, 3025, 3145, 3179, 4477, 4625, 4675, 6919, 7225, 10175, 10285, 10693, 15125, 15725, 15895, 22385, 23375, 34595, 34969, 36125, 50875, 51425, 53465, 76109, 78625, 79475, 111925, 117623, 172975, 174845, 257125, 267325, 380545, 397375, 559625, 588115, 864875, 874225, 1293853, 1336625, 1902725, 2940575, 4371125, 6469265, 9513625, 14702875, 32346325, 161731625]

約数ペア:

[(1, 161731625), (5, 32346325), (11, 14702875), (17, 9513625), (25, 6469265), (37, 4371125), (55, 2940575), (85, 1902725), (121, 1336625), (125, 1293853), (185, 874225), (187, 864875), (275, 588115), (289, 559625), (407, 397375), (425, 380545), (605, 267325), (629, 257125), (925, 174845), (935, 172975), (1375, 117623), (1445, 111925), (2035, 79475), (2057, 78625), (2125, 76109), (3025, 53465), (3145, 51425), (3179, 50875), (4477, 36125), (4625, 34969), (4675, 34595), (6919, 23375), (7225, 22385), (10175, 15895), (10285, 15725), (10693, 15125)]