208520500

素因数分解:

$2^2\times 5^3\times {\mathrm{79}}^1\times {\mathrm{5279}}^1$

素因数の和:5377

約数の個数: 48

約数和(自身を含む): 461260800

約数和(自身を除く): 252740300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 125, 158, 250, 316, 395, 500, 790, 1580, 1975, 3950, 5279, 7900, 9875, 10558, 19750, 21116, 26395, 39500, 52790, 105580, 131975, 263950, 417041, 527900, 659875, 834082, 1319750, 1668164, 2085205, 2639500, 4170410, 8340820, 10426025, 20852050, 41704100, 52130125, 104260250, 208520500]

約数ペア:

[(1, 208520500), (2, 104260250), (4, 52130125), (5, 41704100), (10, 20852050), (20, 10426025), (25, 8340820), (50, 4170410), (79, 2639500), (100, 2085205), (125, 1668164), (158, 1319750), (250, 834082), (316, 659875), (395, 527900), (500, 417041), (790, 263950), (1580, 131975), (1975, 105580), (3950, 52790), (5279, 39500), (7900, 26395), (9875, 21116), (10558, 19750)]