221525900

素因数分解:

$2^2\times 5^2\times {\mathrm{181}}^1\times {\mathrm{12239}}^1$

素因数の和:12434

約数の個数: 36

約数和(自身を含む): 483406560

約数和(自身を除く): 261880660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 181, 362, 724, 905, 1810, 3620, 4525, 9050, 12239, 18100, 24478, 48956, 61195, 122390, 244780, 305975, 611950, 1223900, 2215259, 4430518, 8861036, 11076295, 22152590, 44305180, 55381475, 110762950, 221525900]

約数ペア:

[(1, 221525900), (2, 110762950), (4, 55381475), (5, 44305180), (10, 22152590), (20, 11076295), (25, 8861036), (50, 4430518), (100, 2215259), (181, 1223900), (362, 611950), (724, 305975), (905, 244780), (1810, 122390), (3620, 61195), (4525, 48956), (9050, 24478), (12239, 18100)]