389851520

素因数分解:

$2^7\times 5^1\times {\mathrm{609143}}^1$

素因数の和:609162

約数の個数: 32

約数和(自身を含む): 931990320

約数和(自身を除く): 542138800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 609143, 1218286, 2436572, 3045715, 4873144, 6091430, 9746288, 12182860, 19492576, 24365720, 38985152, 48731440, 77970304, 97462880, 194925760, 389851520]

約数ペア:

[(1, 389851520), (2, 194925760), (4, 97462880), (5, 77970304), (8, 48731440), (10, 38985152), (16, 24365720), (20, 19492576), (32, 12182860), (40, 9746288), (64, 6091430), (80, 4873144), (128, 3045715), (160, 2436572), (320, 1218286), (640, 609143)]