315380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1213}}^1$

素因数の和:1235

約数の個数: 24

約数和(自身を含む): 713832

約数和(自身を除く): 398452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1213, 2426, 4852, 6065, 12130, 15769, 24260, 31538, 63076, 78845, 157690, 315380]

約数ペア:

[(1, 315380), (2, 157690), (4, 78845), (5, 63076), (10, 31538), (13, 24260), (20, 15769), (26, 12130), (52, 6065), (65, 4852), (130, 2426), (260, 1213)]