12678702020

素因数分解:

$2^2\times 5^1\times {\mathrm{4201}}^1\times {\mathrm{150901}}^1$

素因数の和:155111

約数の個数: 24

約数和(自身を含む): 26631788568

約数和(自身を除く): 13953086548

約数列:

[1, 2, 4, 5, 10, 20, 4201, 8402, 16804, 21005, 42010, 84020, 150901, 301802, 603604, 754505, 1509010, 3018020, 633935101, 1267870202, 2535740404, 3169675505, 6339351010, 12678702020]

約数ペア:

[(1, 12678702020), (2, 6339351010), (4, 3169675505), (5, 2535740404), (10, 1267870202), (20, 633935101), (4201, 3018020), (8402, 1509010), (16804, 754505), (21005, 603604), (42010, 301802), (84020, 150901)]