20884460

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{547}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 46400256

約数和(自身を除く): 25515796

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 83, 92, 115, 166, 230, 332, 415, 460, 547, 830, 1094, 1660, 1909, 2188, 2735, 3818, 5470, 7636, 9545, 10940, 12581, 19090, 25162, 38180, 45401, 50324, 62905, 90802, 125810, 181604, 227005, 251620, 454010, 908020, 1044223, 2088446, 4176892, 5221115, 10442230, 20884460]

約数ペア:

[(1, 20884460), (2, 10442230), (4, 5221115), (5, 4176892), (10, 2088446), (20, 1044223), (23, 908020), (46, 454010), (83, 251620), (92, 227005), (115, 181604), (166, 125810), (230, 90802), (332, 62905), (415, 50324), (460, 45401), (547, 38180), (830, 25162), (1094, 19090), (1660, 12581), (1909, 10940), (2188, 9545), (2735, 7636), (3818, 5470)]