277555420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{6701}}^1$

素因数の和:6838

約数の個数: 48

約数和(自身を含む): 619264800

約数和(自身を除く): 341709380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 380, 436, 545, 1090, 2071, 2180, 4142, 6701, 8284, 10355, 13402, 20710, 26804, 33505, 41420, 67010, 127319, 134020, 254638, 509276, 636595, 730409, 1273190, 1460818, 2546380, 2921636, 3652045, 7304090, 13877771, 14608180, 27755542, 55511084, 69388855, 138777710, 277555420]

約数ペア:

[(1, 277555420), (2, 138777710), (4, 69388855), (5, 55511084), (10, 27755542), (19, 14608180), (20, 13877771), (38, 7304090), (76, 3652045), (95, 2921636), (109, 2546380), (190, 1460818), (218, 1273190), (380, 730409), (436, 636595), (545, 509276), (1090, 254638), (2071, 134020), (2180, 127319), (4142, 67010), (6701, 41420), (8284, 33505), (10355, 26804), (13402, 20710)]