18694520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35951}}^1$

素因数の和:35975

約数の個数: 32

約数和(自身を含む): 45299520

約数和(自身を除く): 26605000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35951, 71902, 143804, 179755, 287608, 359510, 467363, 719020, 934726, 1438040, 1869452, 2336815, 3738904, 4673630, 9347260, 18694520]

約数ペア:

[(1, 18694520), (2, 9347260), (4, 4673630), (5, 3738904), (8, 2336815), (10, 1869452), (13, 1438040), (20, 934726), (26, 719020), (40, 467363), (52, 359510), (65, 287608), (104, 179755), (130, 143804), (260, 71902), (520, 35951)]