19749760

素因数分解:

$2^7\times 5^1\times {\mathrm{30859}}^1$

素因数の和:30878

約数の個数: 32

約数和(自身を含む): 47215800

約数和(自身を除く): 27466040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30859, 61718, 123436, 154295, 246872, 308590, 493744, 617180, 987488, 1234360, 1974976, 2468720, 3949952, 4937440, 9874880, 19749760]

約数ペア:

[(1, 19749760), (2, 9874880), (4, 4937440), (5, 3949952), (8, 2468720), (10, 1974976), (16, 1234360), (20, 987488), (32, 617180), (40, 493744), (64, 308590), (80, 246872), (128, 154295), (160, 123436), (320, 61718), (640, 30859)]