20380110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:565

約数の個数: 64

約数和(自身を含む): 52488000

約数和(自身を除く): 32107890

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 89, 102, 170, 178, 255, 267, 445, 449, 510, 534, 890, 898, 1335, 1347, 1513, 2245, 2670, 2694, 3026, 4490, 4539, 6735, 7565, 7633, 9078, 13470, 15130, 15266, 22695, 22899, 38165, 39961, 45390, 45798, 76330, 79922, 114495, 119883, 199805, 228990, 239766, 399610, 599415, 679337, 1198830, 1358674, 2038011, 3396685, 4076022, 6793370, 10190055, 20380110]

約数ペア:

[(1, 20380110), (2, 10190055), (3, 6793370), (5, 4076022), (6, 3396685), (10, 2038011), (15, 1358674), (17, 1198830), (30, 679337), (34, 599415), (51, 399610), (85, 239766), (89, 228990), (102, 199805), (170, 119883), (178, 114495), (255, 79922), (267, 76330), (445, 45798), (449, 45390), (510, 39961), (534, 38165), (890, 22899), (898, 22695), (1335, 15266), (1347, 15130), (1513, 13470), (2245, 9078), (2670, 7633), (2694, 7565), (3026, 6735), (4490, 4539)]