26704640

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{673}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 66127488

約数和(自身を除く): 39422848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 673, 992, 1240, 1280, 1346, 1984, 2480, 2692, 3365, 3968, 4960, 5384, 6730, 7936, 9920, 10768, 13460, 19840, 20863, 21536, 26920, 39680, 41726, 43072, 53840, 83452, 86144, 104315, 107680, 166904, 172288, 208630, 215360, 333808, 417260, 430720, 667616, 834520, 861440, 1335232, 1669040, 2670464, 3338080, 5340928, 6676160, 13352320, 26704640]

約数ペア:

[(1, 26704640), (2, 13352320), (4, 6676160), (5, 5340928), (8, 3338080), (10, 2670464), (16, 1669040), (20, 1335232), (31, 861440), (32, 834520), (40, 667616), (62, 430720), (64, 417260), (80, 333808), (124, 215360), (128, 208630), (155, 172288), (160, 166904), (248, 107680), (256, 104315), (310, 86144), (320, 83452), (496, 53840), (620, 43072), (640, 41726), (673, 39680), (992, 26920), (1240, 21536), (1280, 20863), (1346, 19840), (1984, 13460), (2480, 10768), (2692, 9920), (3365, 7936), (3968, 6730), (4960, 5384)]