20773472

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:571

約数の個数: 48

約数和(自身を含む): 43287552

約数和(自身を除く): 22514080

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 86, 124, 172, 248, 344, 487, 496, 688, 974, 992, 1333, 1376, 1948, 2666, 3896, 5332, 7792, 10664, 15097, 15584, 20941, 21328, 30194, 41882, 42656, 60388, 83764, 120776, 167528, 241552, 335056, 483104, 649171, 670112, 1298342, 2596684, 5193368, 10386736, 20773472]

約数ペア:

[(1, 20773472), (2, 10386736), (4, 5193368), (8, 2596684), (16, 1298342), (31, 670112), (32, 649171), (43, 483104), (62, 335056), (86, 241552), (124, 167528), (172, 120776), (248, 83764), (344, 60388), (487, 42656), (496, 41882), (688, 30194), (974, 21328), (992, 20941), (1333, 15584), (1376, 15097), (1948, 10664), (2666, 7792), (3896, 5332)]