20944096

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:575

約数の個数: 48

約数和(自身を含む): 43642368

約数和(自身を除く): 22698272

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 86, 124, 172, 248, 344, 491, 496, 688, 982, 992, 1333, 1376, 1964, 2666, 3928, 5332, 7856, 10664, 15221, 15712, 21113, 21328, 30442, 42226, 42656, 60884, 84452, 121768, 168904, 243536, 337808, 487072, 654503, 675616, 1309006, 2618012, 5236024, 10472048, 20944096]

約数ペア:

[(1, 20944096), (2, 10472048), (4, 5236024), (8, 2618012), (16, 1309006), (31, 675616), (32, 654503), (43, 487072), (62, 337808), (86, 243536), (124, 168904), (172, 121768), (248, 84452), (344, 60884), (491, 42656), (496, 42226), (688, 30442), (982, 21328), (992, 21113), (1333, 15712), (1376, 15221), (1964, 10664), (2666, 7856), (3928, 5332)]