8170240

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 21118608

約数和(自身を除く): 12948368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 491, 520, 640, 832, 982, 1040, 1280, 1664, 1964, 2080, 2455, 3328, 3928, 4160, 4910, 6383, 7856, 8320, 9820, 12766, 15712, 16640, 19640, 25532, 31424, 31915, 39280, 51064, 62848, 63830, 78560, 102128, 125696, 127660, 157120, 204256, 255320, 314240, 408512, 510640, 628480, 817024, 1021280, 1634048, 2042560, 4085120, 8170240]

約数ペア:

[(1, 8170240), (2, 4085120), (4, 2042560), (5, 1634048), (8, 1021280), (10, 817024), (13, 628480), (16, 510640), (20, 408512), (26, 314240), (32, 255320), (40, 204256), (52, 157120), (64, 127660), (65, 125696), (80, 102128), (104, 78560), (128, 63830), (130, 62848), (160, 51064), (208, 39280), (256, 31915), (260, 31424), (320, 25532), (416, 19640), (491, 16640), (520, 15712), (640, 12766), (832, 9820), (982, 8320), (1040, 7856), (1280, 6383), (1664, 4910), (1964, 4160), (2080, 3928), (2455, 3328)]