198522040

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{67987}}^1$

素因数の和:68071

約数の個数: 32

約数和(自身を含む): 452800080

約数和(自身を除く): 254278040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 67987, 135974, 271948, 339935, 543896, 679870, 1359740, 2719480, 4963051, 9926102, 19852204, 24815255, 39704408, 49630510, 99261020, 198522040]

約数ペア:

[(1, 198522040), (2, 99261020), (4, 49630510), (5, 39704408), (8, 24815255), (10, 19852204), (20, 9926102), (40, 4963051), (73, 2719480), (146, 1359740), (292, 679870), (365, 543896), (584, 339935), (730, 271948), (1460, 135974), (2920, 67987)]