87438520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{168151}}^1$

素因数の和:168175

約数の個数: 32

約数和(自身を含む): 211871520

約数和(自身を除く): 124433000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 168151, 336302, 672604, 840755, 1345208, 1681510, 2185963, 3363020, 4371926, 6726040, 8743852, 10929815, 17487704, 21859630, 43719260, 87438520]

約数ペア:

[(1, 87438520), (2, 43719260), (4, 21859630), (5, 17487704), (8, 10929815), (10, 8743852), (13, 6726040), (20, 4371926), (26, 3363020), (40, 2185963), (52, 1681510), (65, 1345208), (104, 840755), (130, 672604), (260, 336302), (520, 168151)]