210740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 455112

約数和(自身を除く): 244372

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 257, 410, 514, 820, 1028, 1285, 2570, 5140, 10537, 21074, 42148, 52685, 105370, 210740]

約数ペア:

[(1, 210740), (2, 105370), (4, 52685), (5, 42148), (10, 21074), (20, 10537), (41, 5140), (82, 2570), (164, 1285), (205, 1028), (257, 820), (410, 514)]