27806815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 9206945

約数列:

[1, 5, 17, 41, 79, 85, 101, 205, 395, 505, 697, 1343, 1717, 3239, 3485, 4141, 6715, 7979, 8585, 16195, 20705, 39895, 55063, 70397, 135643, 275315, 327139, 351985, 678215, 1635695, 5561363, 27806815]

約数ペア:

[(1, 27806815), (5, 5561363), (17, 1635695), (41, 678215), (79, 351985), (85, 327139), (101, 275315), (205, 135643), (395, 70397), (505, 55063), (697, 39895), (1343, 20705), (1717, 16195), (3239, 8585), (3485, 7979), (4141, 6715)]