20869760

素因数分解:

$2^7\times 5^1\times {\mathrm{32609}}^1$

素因数の和:32628

約数の個数: 32

約数和(自身を含む): 49893300

約数和(自身を除く): 29023540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32609, 65218, 130436, 163045, 260872, 326090, 521744, 652180, 1043488, 1304360, 2086976, 2608720, 4173952, 5217440, 10434880, 20869760]

約数ペア:

[(1, 20869760), (2, 10434880), (4, 5217440), (5, 4173952), (8, 2608720), (10, 2086976), (16, 1304360), (20, 1043488), (32, 652180), (40, 521744), (64, 326090), (80, 260872), (128, 163045), (160, 130436), (320, 65218), (640, 32609)]