19941520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6737}}^1$

素因数の和:6787

約数の個数: 40

約数和(自身を含む): 47624184

約数和(自身を除く): 27682664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6737, 13474, 26948, 33685, 53896, 67370, 107792, 134740, 249269, 269480, 498538, 538960, 997076, 1246345, 1994152, 2492690, 3988304, 4985380, 9970760, 19941520]

約数ペア:

[(1, 19941520), (2, 9970760), (4, 4985380), (5, 3988304), (8, 2492690), (10, 1994152), (16, 1246345), (20, 997076), (37, 538960), (40, 498538), (74, 269480), (80, 249269), (148, 134740), (185, 107792), (296, 67370), (370, 53896), (592, 33685), (740, 26948), (1480, 13474), (2960, 6737)]