284440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{547}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 690480

約数和(自身を除く): 406040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 547, 1094, 2188, 2735, 4376, 5470, 7111, 10940, 14222, 21880, 28444, 35555, 56888, 71110, 142220, 284440]

約数ペア:

[(1, 284440), (2, 142220), (4, 71110), (5, 56888), (8, 35555), (10, 28444), (13, 21880), (20, 14222), (26, 10940), (40, 7111), (52, 5470), (65, 4376), (104, 2735), (130, 2188), (260, 1094), (520, 547)]