4085120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 10538640

約数和(自身を除く): 6453520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 491, 520, 640, 832, 982, 1040, 1664, 1964, 2080, 2455, 3928, 4160, 4910, 6383, 7856, 8320, 9820, 12766, 15712, 19640, 25532, 31424, 31915, 39280, 51064, 62848, 63830, 78560, 102128, 127660, 157120, 204256, 255320, 314240, 408512, 510640, 817024, 1021280, 2042560, 4085120]

約数ペア:

[(1, 4085120), (2, 2042560), (4, 1021280), (5, 817024), (8, 510640), (10, 408512), (13, 314240), (16, 255320), (20, 204256), (26, 157120), (32, 127660), (40, 102128), (52, 78560), (64, 63830), (65, 62848), (80, 51064), (104, 39280), (128, 31915), (130, 31424), (160, 25532), (208, 19640), (260, 15712), (320, 12766), (416, 9820), (491, 8320), (520, 7856), (640, 6383), (832, 4910), (982, 4160), (1040, 3928), (1664, 2455), (1964, 2080)]