20467936

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:527

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 22109984

約数列:

[1, 2, 4, 8, 16, 31, 32, 47, 62, 94, 124, 188, 248, 376, 439, 496, 752, 878, 992, 1457, 1504, 1756, 2914, 3512, 5828, 7024, 11656, 13609, 14048, 20633, 23312, 27218, 41266, 46624, 54436, 82532, 108872, 165064, 217744, 330128, 435488, 639623, 660256, 1279246, 2558492, 5116984, 10233968, 20467936]

約数ペア:

[(1, 20467936), (2, 10233968), (4, 5116984), (8, 2558492), (16, 1279246), (31, 660256), (32, 639623), (47, 435488), (62, 330128), (94, 217744), (124, 165064), (188, 108872), (248, 82532), (376, 54436), (439, 46624), (496, 41266), (752, 27218), (878, 23312), (992, 20633), (1457, 14048), (1504, 13609), (1756, 11656), (2914, 7024), (3512, 5828)]