20426775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{433}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 36810144

約数和(自身を除く): 16383369

約数列:

[1, 3, 5, 15, 17, 25, 37, 51, 75, 85, 111, 185, 255, 425, 433, 555, 629, 925, 1275, 1299, 1887, 2165, 2775, 3145, 6495, 7361, 9435, 10825, 15725, 16021, 22083, 32475, 36805, 47175, 48063, 80105, 110415, 184025, 240315, 272357, 400525, 552075, 817071, 1201575, 1361785, 4085355, 6808925, 20426775]

約数ペア:

[(1, 20426775), (3, 6808925), (5, 4085355), (15, 1361785), (17, 1201575), (25, 817071), (37, 552075), (51, 400525), (75, 272357), (85, 240315), (111, 184025), (185, 110415), (255, 80105), (425, 48063), (433, 47175), (555, 36805), (629, 32475), (925, 22083), (1275, 16021), (1299, 15725), (1887, 10825), (2165, 9435), (2775, 7361), (3145, 6495)]