1243990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 2509056

約数和(自身を除く): 1265066

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 263, 430, 473, 526, 946, 1315, 2365, 2630, 2893, 4730, 5786, 11309, 14465, 22618, 28930, 56545, 113090, 124399, 248798, 621995, 1243990]

約数ペア:

[(1, 1243990), (2, 621995), (5, 248798), (10, 124399), (11, 113090), (22, 56545), (43, 28930), (55, 22618), (86, 14465), (110, 11309), (215, 5786), (263, 4730), (430, 2893), (473, 2630), (526, 2365), (946, 1315)]