212808520

素因数分解:

$2^3\times 5^1\times {\mathrm{5320213}}^1$

素因数の和:5320224

約数の個数: 16

約数和(自身を含む): 478819260

約数和(自身を除く): 266010740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5320213, 10640426, 21280852, 26601065, 42561704, 53202130, 106404260, 212808520]

約数ペア:

[(1, 212808520), (2, 106404260), (4, 53202130), (5, 42561704), (8, 26601065), (10, 21280852), (20, 10640426), (40, 5320213)]