219020540

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{42611}}^1$

素因数の和:42877

約数の個数: 24

約数和(自身を含む): 461743632

約数和(自身を除く): 242723092

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 42611, 85222, 170444, 213055, 426110, 852220, 10951027, 21902054, 43804108, 54755135, 109510270, 219020540]

約数ペア:

[(1, 219020540), (2, 109510270), (4, 54755135), (5, 43804108), (10, 21902054), (20, 10951027), (257, 852220), (514, 426110), (1028, 213055), (1285, 170444), (2570, 85222), (5140, 42611)]