87171320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{859}}^1$

素因数の和:972

約数の個数: 64

約数和(自身を含む): 204336000

約数和(自身を除く): 117164680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 59, 86, 118, 172, 215, 236, 295, 344, 430, 472, 590, 859, 860, 1180, 1718, 1720, 2360, 2537, 3436, 4295, 5074, 6872, 8590, 10148, 12685, 17180, 20296, 25370, 34360, 36937, 50681, 50740, 73874, 101362, 101480, 147748, 184685, 202724, 253405, 295496, 369370, 405448, 506810, 738740, 1013620, 1477480, 2027240, 2179283, 4358566, 8717132, 10896415, 17434264, 21792830, 43585660, 87171320]

約数ペア:

[(1, 87171320), (2, 43585660), (4, 21792830), (5, 17434264), (8, 10896415), (10, 8717132), (20, 4358566), (40, 2179283), (43, 2027240), (59, 1477480), (86, 1013620), (118, 738740), (172, 506810), (215, 405448), (236, 369370), (295, 295496), (344, 253405), (430, 202724), (472, 184685), (590, 147748), (859, 101480), (860, 101362), (1180, 73874), (1718, 50740), (1720, 50681), (2360, 36937), (2537, 34360), (3436, 25370), (4295, 20296), (5074, 17180), (6872, 12685), (8590, 10148)]