20139028015

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{457}}^1\times {\mathrm{709}}^1$

素因数の和:1603

約数の個数: 32

約数和(自身を含む): 25098693120

約数和(自身を除く): 4959665105

約数列:

[1, 5, 31, 155, 401, 457, 709, 2005, 2285, 3545, 12431, 14167, 21979, 62155, 70835, 109895, 183257, 284309, 324013, 916285, 1421545, 1620065, 5680967, 8813579, 10044403, 28404835, 44067895, 50222015, 129929213, 649646065, 4027805603, 20139028015]

約数ペア:

[(1, 20139028015), (5, 4027805603), (31, 649646065), (155, 129929213), (401, 50222015), (457, 44067895), (709, 28404835), (2005, 10044403), (2285, 8813579), (3545, 5680967), (12431, 1620065), (14167, 1421545), (21979, 916285), (62155, 324013), (70835, 284309), (109895, 183257)]