247405440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{128857}}^1$

素因数の和:128879

約数の個数: 64

約数和(自身を含む): 788610960

約数和(自身を除く): 541205520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 128857, 257714, 386571, 515428, 644285, 773142, 1030856, 1288570, 1546284, 1932855, 2061712, 2577140, 3092568, 3865710, 4123424, 5154280, 6185136, 7731420, 8246848, 10308560, 12370272, 15462840, 16493696, 20617120, 24740544, 30925680, 41234240, 49481088, 61851360, 82468480, 123702720, 247405440]

約数ペア:

[(1, 247405440), (2, 123702720), (3, 82468480), (4, 61851360), (5, 49481088), (6, 41234240), (8, 30925680), (10, 24740544), (12, 20617120), (15, 16493696), (16, 15462840), (20, 12370272), (24, 10308560), (30, 8246848), (32, 7731420), (40, 6185136), (48, 5154280), (60, 4123424), (64, 3865710), (80, 3092568), (96, 2577140), (120, 2061712), (128, 1932855), (160, 1546284), (192, 1288570), (240, 1030856), (320, 773142), (384, 644285), (480, 515428), (640, 386571), (960, 257714), (1920, 128857)]