11811920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{409}}^1$

素因数の和:460

約数の個数: 60

約数和(自身を含む): 29055060

約数和(自身を除く): 17243140

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 409, 722, 760, 818, 1444, 1520, 1636, 1805, 2045, 2888, 3272, 3610, 4090, 5776, 6544, 7220, 7771, 8180, 14440, 15542, 16360, 28880, 31084, 32720, 38855, 62168, 77710, 124336, 147649, 155420, 295298, 310840, 590596, 621680, 738245, 1181192, 1476490, 2362384, 2952980, 5905960, 11811920]

約数ペア:

[(1, 11811920), (2, 5905960), (4, 2952980), (5, 2362384), (8, 1476490), (10, 1181192), (16, 738245), (19, 621680), (20, 590596), (38, 310840), (40, 295298), (76, 155420), (80, 147649), (95, 124336), (152, 77710), (190, 62168), (304, 38855), (361, 32720), (380, 31084), (409, 28880), (722, 16360), (760, 15542), (818, 14440), (1444, 8180), (1520, 7771), (1636, 7220), (1805, 6544), (2045, 5776), (2888, 4090), (3272, 3610)]