208767560

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{19259}}^1$

素因数の和:19541

約数の個数: 32

約数和(自身を含む): 471484800

約数和(自身を除く): 262717240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 19259, 38518, 77036, 96295, 154072, 192590, 385180, 770360, 5219189, 10438378, 20876756, 26095945, 41753512, 52191890, 104383780, 208767560]

約数ペア:

[(1, 208767560), (2, 104383780), (4, 52191890), (5, 41753512), (8, 26095945), (10, 20876756), (20, 10438378), (40, 5219189), (271, 770360), (542, 385180), (1084, 192590), (1355, 154072), (2168, 96295), (2710, 77036), (5420, 38518), (10840, 19259)]