71808440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{557}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 177176160

約数和(自身を除く): 105367720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 293, 440, 557, 586, 1114, 1172, 1465, 2228, 2344, 2785, 2930, 3223, 4456, 5570, 5860, 6127, 6446, 11140, 11720, 12254, 12892, 16115, 22280, 24508, 25784, 30635, 32230, 49016, 61270, 64460, 122540, 128920, 163201, 245080, 326402, 652804, 816005, 1305608, 1632010, 1795211, 3264020, 3590422, 6528040, 7180844, 8976055, 14361688, 17952110, 35904220, 71808440]

約数ペア:

[(1, 71808440), (2, 35904220), (4, 17952110), (5, 14361688), (8, 8976055), (10, 7180844), (11, 6528040), (20, 3590422), (22, 3264020), (40, 1795211), (44, 1632010), (55, 1305608), (88, 816005), (110, 652804), (220, 326402), (293, 245080), (440, 163201), (557, 128920), (586, 122540), (1114, 64460), (1172, 61270), (1465, 49016), (2228, 32230), (2344, 30635), (2785, 25784), (2930, 24508), (3223, 22280), (4456, 16115), (5570, 12892), (5860, 12254), (6127, 11720), (6446, 11140)]