20947500544

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{1319777}}^1$

素因数の和:1319826

約数の個数: 40

約数和(自身を含む): 43204252608

約数和(自身を除く): 22256752064

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1984, 3968, 7936, 15872, 1319777, 2639554, 5279108, 10558216, 21116432, 40913087, 42232864, 81826174, 84465728, 163652348, 168931456, 327304696, 337862912, 654609392, 675725824, 1309218784, 2618437568, 5236875136, 10473750272, 20947500544]

約数ペア:

[(1, 20947500544), (2, 10473750272), (4, 5236875136), (8, 2618437568), (16, 1309218784), (31, 675725824), (32, 654609392), (62, 337862912), (64, 327304696), (124, 168931456), (128, 163652348), (248, 84465728), (256, 81826174), (496, 42232864), (512, 40913087), (992, 21116432), (1984, 10558216), (3968, 5279108), (7936, 2639554), (15872, 1319777)]