284540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 613872

約数和(自身を除く): 329332

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 347, 410, 694, 820, 1388, 1735, 3470, 6940, 14227, 28454, 56908, 71135, 142270, 284540]

約数ペア:

[(1, 284540), (2, 142270), (4, 71135), (5, 56908), (10, 28454), (20, 14227), (41, 6940), (82, 3470), (164, 1735), (205, 1388), (347, 820), (410, 694)]