205467580

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 437542560

約数和(自身を除く): 232074980

約数列:

[1, 2, 4, 5, 10, 20, 181, 211, 269, 362, 422, 538, 724, 844, 905, 1055, 1076, 1345, 1810, 2110, 2690, 3620, 4220, 5380, 38191, 48689, 56759, 76382, 97378, 113518, 152764, 190955, 194756, 227036, 243445, 283795, 381910, 486890, 567590, 763820, 973780, 1135180, 10273379, 20546758, 41093516, 51366895, 102733790, 205467580]

約数ペア:

[(1, 205467580), (2, 102733790), (4, 51366895), (5, 41093516), (10, 20546758), (20, 10273379), (181, 1135180), (211, 973780), (269, 763820), (362, 567590), (422, 486890), (538, 381910), (724, 283795), (844, 243445), (905, 227036), (1055, 194756), (1076, 190955), (1345, 152764), (1810, 113518), (2110, 97378), (2690, 76382), (3620, 56759), (4220, 48689), (5380, 38191)]