18838760

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3119}}^1$

素因数の和:3281

約数の個数: 32

約数和(自身を含む): 42681600

約数和(自身を除く): 23842840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 3119, 6040, 6238, 12476, 15595, 24952, 31190, 62380, 124760, 470969, 941938, 1883876, 2354845, 3767752, 4709690, 9419380, 18838760]

約数ペア:

[(1, 18838760), (2, 9419380), (4, 4709690), (5, 3767752), (8, 2354845), (10, 1883876), (20, 941938), (40, 470969), (151, 124760), (302, 62380), (604, 31190), (755, 24952), (1208, 15595), (1510, 12476), (3020, 6238), (3119, 6040)]