20354656

素因数分解:

$2^5\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1021}}^1$

素因数の和:1127

約数の個数: 48

約数和(自身を含む): 46357920

約数和(自身を除く): 26003264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 89, 112, 178, 224, 356, 623, 712, 1021, 1246, 1424, 2042, 2492, 2848, 4084, 4984, 7147, 8168, 9968, 14294, 16336, 19936, 28588, 32672, 57176, 90869, 114352, 181738, 228704, 363476, 636083, 726952, 1272166, 1453904, 2544332, 2907808, 5088664, 10177328, 20354656]

約数ペア:

[(1, 20354656), (2, 10177328), (4, 5088664), (7, 2907808), (8, 2544332), (14, 1453904), (16, 1272166), (28, 726952), (32, 636083), (56, 363476), (89, 228704), (112, 181738), (178, 114352), (224, 90869), (356, 57176), (623, 32672), (712, 28588), (1021, 19936), (1246, 16336), (1424, 14294), (2042, 9968), (2492, 8168), (2848, 7147), (4084, 4984)]