20496208

素因数分解:

$2^4\times {\mathrm{31}}^3\times {\mathrm{43}}^1$

素因数の和:144

約数の個数: 40

約数和(自身を含む): 41989376

約数和(自身を除く): 21493168

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 124, 172, 248, 344, 496, 688, 961, 1333, 1922, 2666, 3844, 5332, 7688, 10664, 15376, 21328, 29791, 41323, 59582, 82646, 119164, 165292, 238328, 330584, 476656, 661168, 1281013, 2562026, 5124052, 10248104, 20496208]

約数ペア:

[(1, 20496208), (2, 10248104), (4, 5124052), (8, 2562026), (16, 1281013), (31, 661168), (43, 476656), (62, 330584), (86, 238328), (124, 165292), (172, 119164), (248, 82646), (344, 59582), (496, 41323), (688, 29791), (961, 21328), (1333, 15376), (1922, 10664), (2666, 7688), (3844, 5332)]