16570180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 38364480

約数和(自身を除く): 21794300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 691, 1090, 1199, 1382, 2180, 2398, 2764, 3455, 4796, 5995, 6910, 7601, 11990, 13820, 15202, 23980, 30404, 38005, 75319, 76010, 150638, 152020, 301276, 376595, 753190, 828509, 1506380, 1657018, 3314036, 4142545, 8285090, 16570180]

約数ペア:

[(1, 16570180), (2, 8285090), (4, 4142545), (5, 3314036), (10, 1657018), (11, 1506380), (20, 828509), (22, 753190), (44, 376595), (55, 301276), (109, 152020), (110, 150638), (218, 76010), (220, 75319), (436, 38005), (545, 30404), (691, 23980), (1090, 15202), (1199, 13820), (1382, 11990), (2180, 7601), (2398, 6910), (2764, 5995), (3455, 4796)]