19698080

素因数分解:

$2^5\times 5^1\times {\mathrm{123113}}^1$

素因数の和:123128

約数の個数: 24

約数和(自身を含む): 46537092

約数和(自身を除く): 26839012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123113, 246226, 492452, 615565, 984904, 1231130, 1969808, 2462260, 3939616, 4924520, 9849040, 19698080]

約数ペア:

[(1, 19698080), (2, 9849040), (4, 4924520), (5, 3939616), (8, 2462260), (10, 1969808), (16, 1231130), (20, 984904), (32, 615565), (40, 492452), (80, 246226), (160, 123113)]