40319252720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{28657}}^1$

素因数の和:29122

約数の個数: 80

約数和(自身を含む): 96160199520

約数和(自身を除く): 55840946800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 409, 430, 688, 818, 860, 1636, 1720, 2045, 3272, 3440, 4090, 6544, 8180, 16360, 17587, 28657, 32720, 35174, 57314, 70348, 87935, 114628, 140696, 143285, 175870, 229256, 281392, 286570, 351740, 458512, 573140, 703480, 1146280, 1232251, 1406960, 2292560, 2464502, 4929004, 6161255, 9858008, 11720713, 12322510, 19716016, 23441426, 24645020, 46882852, 49290040, 58603565, 93765704, 98580080, 117207130, 187531408, 234414260, 468828520, 503990659, 937657040, 1007981318, 2015962636, 2519953295, 4031925272, 5039906590, 8063850544, 10079813180, 20159626360, 40319252720]

約数ペア:

[(1, 40319252720), (2, 20159626360), (4, 10079813180), (5, 8063850544), (8, 5039906590), (10, 4031925272), (16, 2519953295), (20, 2015962636), (40, 1007981318), (43, 937657040), (80, 503990659), (86, 468828520), (172, 234414260), (215, 187531408), (344, 117207130), (409, 98580080), (430, 93765704), (688, 58603565), (818, 49290040), (860, 46882852), (1636, 24645020), (1720, 23441426), (2045, 19716016), (3272, 12322510), (3440, 11720713), (4090, 9858008), (6544, 6161255), (8180, 4929004), (16360, 2464502), (17587, 2292560), (28657, 1406960), (32720, 1232251), (35174, 1146280), (57314, 703480), (70348, 573140), (87935, 458512), (114628, 351740), (140696, 286570), (143285, 281392), (175870, 229256)]