347888920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{907}}^1$

素因数の和:1184

約数の個数: 64

約数和(自身を含む): 805432320

約数和(自身を除く): 457543400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 223, 344, 430, 446, 860, 892, 907, 1115, 1720, 1784, 1814, 2230, 3628, 4460, 4535, 7256, 8920, 9070, 9589, 18140, 19178, 36280, 38356, 39001, 47945, 76712, 78002, 95890, 156004, 191780, 195005, 202261, 312008, 383560, 390010, 404522, 780020, 809044, 1011305, 1560040, 1618088, 2022610, 4045220, 8090440, 8697223, 17394446, 34788892, 43486115, 69577784, 86972230, 173944460, 347888920]

約数ペア:

[(1, 347888920), (2, 173944460), (4, 86972230), (5, 69577784), (8, 43486115), (10, 34788892), (20, 17394446), (40, 8697223), (43, 8090440), (86, 4045220), (172, 2022610), (215, 1618088), (223, 1560040), (344, 1011305), (430, 809044), (446, 780020), (860, 404522), (892, 390010), (907, 383560), (1115, 312008), (1720, 202261), (1784, 195005), (1814, 191780), (2230, 156004), (3628, 95890), (4460, 78002), (4535, 76712), (7256, 47945), (8920, 39001), (9070, 38356), (9589, 36280), (18140, 19178)]