18696760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 45021600

約数和(自身を除く): 26324840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 146, 152, 190, 292, 337, 365, 380, 584, 674, 730, 760, 1348, 1387, 1460, 1685, 2696, 2774, 2920, 3370, 5548, 6403, 6740, 6935, 11096, 12806, 13480, 13870, 24601, 25612, 27740, 32015, 49202, 51224, 55480, 64030, 98404, 123005, 128060, 196808, 246010, 256120, 467419, 492020, 934838, 984040, 1869676, 2337095, 3739352, 4674190, 9348380, 18696760]

約数ペア:

[(1, 18696760), (2, 9348380), (4, 4674190), (5, 3739352), (8, 2337095), (10, 1869676), (19, 984040), (20, 934838), (38, 492020), (40, 467419), (73, 256120), (76, 246010), (95, 196808), (146, 128060), (152, 123005), (190, 98404), (292, 64030), (337, 55480), (365, 51224), (380, 49202), (584, 32015), (674, 27740), (730, 25612), (760, 24601), (1348, 13870), (1387, 13480), (1460, 12806), (1685, 11096), (2696, 6935), (2774, 6740), (2920, 6403), (3370, 5548)]