40591420

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{7717}}^1$

素因数の和:7989

約数の個数: 24

約数和(自身を含む): 85577184

約数和(自身を除く): 44985764

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 7717, 15434, 30868, 38585, 77170, 154340, 2029571, 4059142, 8118284, 10147855, 20295710, 40591420]

約数ペア:

[(1, 40591420), (2, 20295710), (4, 10147855), (5, 8118284), (10, 4059142), (20, 2029571), (263, 154340), (526, 77170), (1052, 38585), (1315, 30868), (2630, 15434), (5260, 7717)]