8959940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 20744640

約数和(自身を除く): 11784700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 293, 556, 586, 695, 1172, 1390, 1465, 1529, 2780, 2930, 3058, 3223, 5860, 6116, 6446, 7645, 12892, 15290, 16115, 30580, 32230, 40727, 64460, 81454, 162908, 203635, 407270, 447997, 814540, 895994, 1791988, 2239985, 4479970, 8959940]

約数ペア:

[(1, 8959940), (2, 4479970), (4, 2239985), (5, 1791988), (10, 895994), (11, 814540), (20, 447997), (22, 407270), (44, 203635), (55, 162908), (110, 81454), (139, 64460), (220, 40727), (278, 32230), (293, 30580), (556, 16115), (586, 15290), (695, 12892), (1172, 7645), (1390, 6446), (1465, 6116), (1529, 5860), (2780, 3223), (2930, 3058)]