51550360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 122212800

約数和(自身を除く): 70662440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 137, 184, 230, 274, 409, 460, 548, 685, 818, 920, 1096, 1370, 1636, 2045, 2740, 3151, 3272, 4090, 5480, 6302, 8180, 9407, 12604, 15755, 16360, 18814, 25208, 31510, 37628, 47035, 56033, 63020, 75256, 94070, 112066, 126040, 188140, 224132, 280165, 376280, 448264, 560330, 1120660, 1288759, 2241320, 2577518, 5155036, 6443795, 10310072, 12887590, 25775180, 51550360]

約数ペア:

[(1, 51550360), (2, 25775180), (4, 12887590), (5, 10310072), (8, 6443795), (10, 5155036), (20, 2577518), (23, 2241320), (40, 1288759), (46, 1120660), (92, 560330), (115, 448264), (137, 376280), (184, 280165), (230, 224132), (274, 188140), (409, 126040), (460, 112066), (548, 94070), (685, 75256), (818, 63020), (920, 56033), (1096, 47035), (1370, 37628), (1636, 31510), (2045, 25208), (2740, 18814), (3151, 16360), (3272, 15755), (4090, 12604), (5480, 9407), (6302, 8180)]