628312040

素因数分解:

$2^3\times 5^1\times {\mathrm{761}}^1\times {\mathrm{20641}}^1$

素因数の和:21413

約数の個数: 32

約数和(自身を含む): 1415628360

約数和(自身を除く): 787316320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 761, 1522, 3044, 3805, 6088, 7610, 15220, 20641, 30440, 41282, 82564, 103205, 165128, 206410, 412820, 825640, 15707801, 31415602, 62831204, 78539005, 125662408, 157078010, 314156020, 628312040]

約数ペア:

[(1, 628312040), (2, 314156020), (4, 157078010), (5, 125662408), (8, 78539005), (10, 62831204), (20, 31415602), (40, 15707801), (761, 825640), (1522, 412820), (3044, 206410), (3805, 165128), (6088, 103205), (7610, 82564), (15220, 41282), (20641, 30440)]