210306220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{256471}}^1$

素因数の和:256521

約数の個数: 24

約数和(自身を含む): 452416608

約数和(自身を除く): 242110388

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 256471, 512942, 1025884, 1282355, 2564710, 5129420, 10515311, 21030622, 42061244, 52576555, 105153110, 210306220]

約数ペア:

[(1, 210306220), (2, 105153110), (4, 52576555), (5, 42061244), (10, 21030622), (20, 10515311), (41, 5129420), (82, 2564710), (164, 1282355), (205, 1025884), (410, 512942), (820, 256471)]