78167240

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7211}}^1$

素因数の和:7493

約数の個数: 32

約数和(自身を含む): 176549760

約数和(自身を除く): 98382520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 7211, 10840, 14422, 28844, 36055, 57688, 72110, 144220, 288440, 1954181, 3908362, 7816724, 9770905, 15633448, 19541810, 39083620, 78167240]

約数ペア:

[(1, 78167240), (2, 39083620), (4, 19541810), (5, 15633448), (8, 9770905), (10, 7816724), (20, 3908362), (40, 1954181), (271, 288440), (542, 144220), (1084, 72110), (1355, 57688), (2168, 36055), (2710, 28844), (5420, 14422), (7211, 10840)]