81799275

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 143740800

約数和(自身を除く): 61941525

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 137, 285, 411, 419, 475, 685, 1257, 1425, 2055, 2095, 2603, 3425, 6285, 7809, 7961, 10275, 10475, 13015, 23883, 31425, 39045, 39805, 57403, 65075, 119415, 172209, 195225, 199025, 287015, 597075, 861045, 1090657, 1435075, 3271971, 4305225, 5453285, 16359855, 27266425, 81799275]

約数ペア:

[(1, 81799275), (3, 27266425), (5, 16359855), (15, 5453285), (19, 4305225), (25, 3271971), (57, 1435075), (75, 1090657), (95, 861045), (137, 597075), (285, 287015), (411, 199025), (419, 195225), (475, 172209), (685, 119415), (1257, 65075), (1425, 57403), (2055, 39805), (2095, 39045), (2603, 31425), (3425, 23883), (6285, 13015), (7809, 10475), (7961, 10275)]