56980840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1867}}^1$

素因数の和:1994

約数の個数: 64

約数和(自身を含む): 147945600

約数和(自身を除く): 90964760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 763, 872, 1090, 1526, 1867, 2180, 3052, 3734, 3815, 4360, 6104, 7468, 7630, 9335, 13069, 14936, 15260, 18670, 26138, 30520, 37340, 52276, 65345, 74680, 104552, 130690, 203503, 261380, 407006, 522760, 814012, 1017515, 1424521, 1628024, 2035030, 2849042, 4070060, 5698084, 7122605, 8140120, 11396168, 14245210, 28490420, 56980840]

約数ペア:

[(1, 56980840), (2, 28490420), (4, 14245210), (5, 11396168), (7, 8140120), (8, 7122605), (10, 5698084), (14, 4070060), (20, 2849042), (28, 2035030), (35, 1628024), (40, 1424521), (56, 1017515), (70, 814012), (109, 522760), (140, 407006), (218, 261380), (280, 203503), (436, 130690), (545, 104552), (763, 74680), (872, 65345), (1090, 52276), (1526, 37340), (1867, 30520), (2180, 26138), (3052, 18670), (3734, 15260), (3815, 14936), (4360, 13069), (6104, 9335), (7468, 7630)]