20189184520

素因数分解:

$2^3\times 5^1\times {\mathrm{504729613}}^1$

素因数の和:504729624

約数の個数: 16

約数和(自身を含む): 45425665260

約数和(自身を除く): 25236480740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504729613, 1009459226, 2018918452, 2523648065, 4037836904, 5047296130, 10094592260, 20189184520]

約数ペア:

[(1, 20189184520), (2, 10094592260), (4, 5047296130), (5, 4037836904), (8, 2523648065), (10, 2018918452), (20, 1009459226), (40, 504729613)]