80811720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20407}}^1$

素因数の和:20435

約数の個数: 96

約数和(自身を含む): 286528320

約数和(自身を除く): 205716600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 20407, 40814, 61221, 81628, 102035, 122442, 163256, 183663, 204070, 224477, 244884, 306105, 367326, 408140, 448954, 489768, 612210, 673431, 734652, 816280, 897908, 918315, 1122385, 1224420, 1346862, 1469304, 1795816, 1836630, 2020293, 2244770, 2448840, 2693724, 3367155, 3673260, 4040586, 4489540, 5387448, 6734310, 7346520, 8081172, 8979080, 10101465, 13468620, 16162344, 20202930, 26937240, 40405860, 80811720]

約数ペア:

[(1, 80811720), (2, 40405860), (3, 26937240), (4, 20202930), (5, 16162344), (6, 13468620), (8, 10101465), (9, 8979080), (10, 8081172), (11, 7346520), (12, 6734310), (15, 5387448), (18, 4489540), (20, 4040586), (22, 3673260), (24, 3367155), (30, 2693724), (33, 2448840), (36, 2244770), (40, 2020293), (44, 1836630), (45, 1795816), (55, 1469304), (60, 1346862), (66, 1224420), (72, 1122385), (88, 918315), (90, 897908), (99, 816280), (110, 734652), (120, 673431), (132, 612210), (165, 489768), (180, 448954), (198, 408140), (220, 367326), (264, 306105), (330, 244884), (360, 224477), (396, 204070), (440, 183663), (495, 163256), (660, 122442), (792, 102035), (990, 81628), (1320, 61221), (1980, 40814), (3960, 20407)]