61661015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 83607552

約数和(自身を除く): 21946537

約数列:

[1, 5, 13, 31, 65, 71, 155, 355, 403, 431, 923, 2015, 2155, 2201, 4615, 5603, 11005, 13361, 28015, 28613, 30601, 66805, 143065, 153005, 173693, 397813, 868465, 948631, 1989065, 4743155, 12332203, 61661015]

約数ペア:

[(1, 61661015), (5, 12332203), (13, 4743155), (31, 1989065), (65, 948631), (71, 868465), (155, 397813), (355, 173693), (403, 153005), (431, 143065), (923, 66805), (2015, 30601), (2155, 28613), (2201, 28015), (4615, 13361), (5603, 11005)]