20031620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6221}}^1$

素因数の和:6260

約数の個数: 48

約数和(自身を含む): 50174208

約数和(自身を除く): 30142588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6221, 12442, 24884, 31105, 43547, 62210, 87094, 124420, 143083, 174188, 217735, 286166, 435470, 572332, 715415, 870940, 1001581, 1430830, 2003162, 2861660, 4006324, 5007905, 10015810, 20031620]

約数ペア:

[(1, 20031620), (2, 10015810), (4, 5007905), (5, 4006324), (7, 2861660), (10, 2003162), (14, 1430830), (20, 1001581), (23, 870940), (28, 715415), (35, 572332), (46, 435470), (70, 286166), (92, 217735), (115, 174188), (140, 143083), (161, 124420), (230, 87094), (322, 62210), (460, 43547), (644, 31105), (805, 24884), (1610, 12442), (3220, 6221)]