20966720

素因数分解:

$2^6\times 5^1\times {\mathrm{65521}}^1$

素因数の和:65538

約数の個数: 28

約数和(自身を含む): 49927764

約数和(自身を除く): 28961044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65521, 131042, 262084, 327605, 524168, 655210, 1048336, 1310420, 2096672, 2620840, 4193344, 5241680, 10483360, 20966720]

約数ペア:

[(1, 20966720), (2, 10483360), (4, 5241680), (5, 4193344), (8, 2620840), (10, 2096672), (16, 1310420), (20, 1048336), (32, 655210), (40, 524168), (64, 327605), (80, 262084), (160, 131042), (320, 65521)]