81176075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 112492800

約数和(自身を除く): 31316725

約数列:

[1, 5, 19, 25, 29, 71, 83, 95, 145, 355, 415, 475, 551, 725, 1349, 1577, 1775, 2059, 2075, 2407, 2755, 5893, 6745, 7885, 10295, 12035, 13775, 29465, 33725, 39121, 39425, 45733, 51475, 60175, 111967, 147325, 170897, 195605, 228665, 559835, 854485, 978025, 1143325, 2799175, 3247043, 4272425, 16235215, 81176075]

約数ペア:

[(1, 81176075), (5, 16235215), (19, 4272425), (25, 3247043), (29, 2799175), (71, 1143325), (83, 978025), (95, 854485), (145, 559835), (355, 228665), (415, 195605), (475, 170897), (551, 147325), (725, 111967), (1349, 60175), (1577, 51475), (1775, 45733), (2059, 39425), (2075, 39121), (2407, 33725), (2755, 29465), (5893, 13775), (6745, 12035), (7885, 10295)]