19457440

素因数分解:

$2^5\times 5^1\times {\mathrm{121609}}^1$

素因数の和:121624

約数の個数: 24

約数和(自身を含む): 45968580

約数和(自身を除く): 26511140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121609, 243218, 486436, 608045, 972872, 1216090, 1945744, 2432180, 3891488, 4864360, 9728720, 19457440]

約数ペア:

[(1, 19457440), (2, 9728720), (4, 4864360), (5, 3891488), (8, 2432180), (10, 1945744), (16, 1216090), (20, 972872), (32, 608045), (40, 486436), (80, 243218), (160, 121609)]