320417920

素因数分解:

$2^7\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4679}}^1$

素因数の和:4805

約数の個数: 64

約数和(自身を含む): 773323200

約数和(自身を除く): 452905280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 128, 160, 214, 320, 428, 535, 640, 856, 1070, 1712, 2140, 3424, 4280, 4679, 6848, 8560, 9358, 13696, 17120, 18716, 23395, 34240, 37432, 46790, 68480, 74864, 93580, 149728, 187160, 299456, 374320, 500653, 598912, 748640, 1001306, 1497280, 2002612, 2503265, 2994560, 4005224, 5006530, 8010448, 10013060, 16020896, 20026120, 32041792, 40052240, 64083584, 80104480, 160208960, 320417920]

約数ペア:

[(1, 320417920), (2, 160208960), (4, 80104480), (5, 64083584), (8, 40052240), (10, 32041792), (16, 20026120), (20, 16020896), (32, 10013060), (40, 8010448), (64, 5006530), (80, 4005224), (107, 2994560), (128, 2503265), (160, 2002612), (214, 1497280), (320, 1001306), (428, 748640), (535, 598912), (640, 500653), (856, 374320), (1070, 299456), (1712, 187160), (2140, 149728), (3424, 93580), (4280, 74864), (4679, 68480), (6848, 46790), (8560, 37432), (9358, 34240), (13696, 23395), (17120, 18716)]