1320296960

素因数分解:

$2^9\times 5^1\times {\mathrm{515741}}^1$

素因数の和:515764

約数の個数: 40

約数和(自身を含む): 3165624396

約数和(自身を除く): 1845327436

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 515741, 1031482, 2062964, 2578705, 4125928, 5157410, 8251856, 10314820, 16503712, 20629640, 33007424, 41259280, 66014848, 82518560, 132029696, 165037120, 264059392, 330074240, 660148480, 1320296960]

約数ペア:

[(1, 1320296960), (2, 660148480), (4, 330074240), (5, 264059392), (8, 165037120), (10, 132029696), (16, 82518560), (20, 66014848), (32, 41259280), (40, 33007424), (64, 20629640), (80, 16503712), (128, 10314820), (160, 8251856), (256, 5157410), (320, 4125928), (512, 2578705), (640, 2062964), (1280, 1031482), (2560, 515741)]