20780416

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5237}}^1$

素因数の和:5282

約数の個数: 32

約数和(自身を含む): 42742080

約数和(自身を除く): 21961664

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5237, 10474, 20948, 41896, 83792, 162347, 167584, 324694, 335168, 649388, 670336, 1298776, 2597552, 5195104, 10390208, 20780416]

約数ペア:

[(1, 20780416), (2, 10390208), (4, 5195104), (8, 2597552), (16, 1298776), (31, 670336), (32, 649388), (62, 335168), (64, 324694), (124, 167584), (128, 162347), (248, 83792), (496, 41896), (992, 20948), (1984, 10474), (3968, 5237)]