20955008

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5281}}^1$

素因数の和:5326

約数の個数: 32

約数和(自身を含む): 43101120

約数和(自身を除く): 22146112

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5281, 10562, 21124, 42248, 84496, 163711, 168992, 327422, 337984, 654844, 675968, 1309688, 2619376, 5238752, 10477504, 20955008]

約数ペア:

[(1, 20955008), (2, 10477504), (4, 5238752), (8, 2619376), (16, 1309688), (31, 675968), (32, 654844), (62, 337984), (64, 327422), (124, 168992), (128, 163711), (248, 84496), (496, 42248), (992, 21124), (1984, 10562), (3968, 5281)]