19557520

素因数分解:

$2^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1619}}^1$

素因数の和:1783

約数の個数: 40

約数和(自身を含む): 45800640

約数和(自身を除く): 26243120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 151, 302, 604, 755, 1208, 1510, 1619, 2416, 3020, 3238, 6040, 6476, 8095, 12080, 12952, 16190, 25904, 32380, 64760, 129520, 244469, 488938, 977876, 1222345, 1955752, 2444690, 3911504, 4889380, 9778760, 19557520]

約数ペア:

[(1, 19557520), (2, 9778760), (4, 4889380), (5, 3911504), (8, 2444690), (10, 1955752), (16, 1222345), (20, 977876), (40, 488938), (80, 244469), (151, 129520), (302, 64760), (604, 32380), (755, 25904), (1208, 16190), (1510, 12952), (1619, 12080), (2416, 8095), (3020, 6476), (3238, 6040)]