1388260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1693}}^1$

素因数の和:1743

約数の個数: 24

約数和(自身を含む): 2988216

約数和(自身を除く): 1599956

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1693, 3386, 6772, 8465, 16930, 33860, 69413, 138826, 277652, 347065, 694130, 1388260]

約数ペア:

[(1, 1388260), (2, 694130), (4, 347065), (5, 277652), (10, 138826), (20, 69413), (41, 33860), (82, 16930), (164, 8465), (205, 6772), (410, 3386), (820, 1693)]