1288730020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2801587}}^1$

素因数の和:2801619

約数の個数: 24

約数和(自身を含む): 2824000704

約数和(自身を除く): 1535270684

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 2801587, 5603174, 11206348, 14007935, 28015870, 56031740, 64436501, 128873002, 257746004, 322182505, 644365010, 1288730020]

約数ペア:

[(1, 1288730020), (2, 644365010), (4, 322182505), (5, 257746004), (10, 128873002), (20, 64436501), (23, 56031740), (46, 28015870), (92, 14007935), (115, 11206348), (230, 5603174), (460, 2801587)]