28379440

素因数分解:

$2^4\times 5^1\times {\mathrm{354743}}^1$

素因数の和:354756

約数の個数: 20

約数和(自身を含む): 65982384

約数和(自身を除く): 37602944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354743, 709486, 1418972, 1773715, 2837944, 3547430, 5675888, 7094860, 14189720, 28379440]

約数ペア:

[(1, 28379440), (2, 14189720), (4, 7094860), (5, 5675888), (8, 3547430), (10, 2837944), (16, 1773715), (20, 1418972), (40, 709486), (80, 354743)]