776080

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:211

約数の個数: 40

約数和(自身を含む): 1841400

約数和(自身を除く): 1065320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 109, 178, 218, 356, 436, 445, 545, 712, 872, 890, 1090, 1424, 1744, 1780, 2180, 3560, 4360, 7120, 8720, 9701, 19402, 38804, 48505, 77608, 97010, 155216, 194020, 388040, 776080]

約数ペア:

[(1, 776080), (2, 388040), (4, 194020), (5, 155216), (8, 97010), (10, 77608), (16, 48505), (20, 38804), (40, 19402), (80, 9701), (89, 8720), (109, 7120), (178, 4360), (218, 3560), (356, 2180), (436, 1780), (445, 1744), (545, 1424), (712, 1090), (872, 890)]