225156940

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{577}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 480664800

約数和(自身を除く): 255507860

約数列:

[1, 2, 4, 5, 10, 20, 109, 179, 218, 358, 436, 545, 577, 716, 895, 1090, 1154, 1790, 2180, 2308, 2885, 3580, 5770, 11540, 19511, 39022, 62893, 78044, 97555, 103283, 125786, 195110, 206566, 251572, 314465, 390220, 413132, 516415, 628930, 1032830, 1257860, 2065660, 11257847, 22515694, 45031388, 56289235, 112578470, 225156940]

約数ペア:

[(1, 225156940), (2, 112578470), (4, 56289235), (5, 45031388), (10, 22515694), (20, 11257847), (109, 2065660), (179, 1257860), (218, 1032830), (358, 628930), (436, 516415), (545, 413132), (577, 390220), (716, 314465), (895, 251572), (1090, 206566), (1154, 195110), (1790, 125786), (2180, 103283), (2308, 97555), (2885, 78044), (3580, 62893), (5770, 39022), (11540, 19511)]