20254845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{431}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 35126784

約数和(自身を除く): 14871939

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 241, 431, 723, 1205, 1293, 2155, 3133, 3615, 5603, 6465, 9399, 15665, 16809, 28015, 46995, 84045, 103871, 311613, 519355, 1350323, 1558065, 4050969, 6751615, 20254845]

約数ペア:

[(1, 20254845), (3, 6751615), (5, 4050969), (13, 1558065), (15, 1350323), (39, 519355), (65, 311613), (195, 103871), (241, 84045), (431, 46995), (723, 28015), (1205, 16809), (1293, 15665), (2155, 9399), (3133, 6465), (3615, 5603)]