12806720

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1291}}^1$

素因数の和:1339

約数の個数: 56

約数和(自身を含む): 31504128

約数和(自身を除く): 18697408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1291, 1984, 2480, 2582, 4960, 5164, 6455, 9920, 10328, 12910, 20656, 25820, 40021, 41312, 51640, 80042, 82624, 103280, 160084, 200105, 206560, 320168, 400210, 413120, 640336, 800420, 1280672, 1600840, 2561344, 3201680, 6403360, 12806720]

約数ペア:

[(1, 12806720), (2, 6403360), (4, 3201680), (5, 2561344), (8, 1600840), (10, 1280672), (16, 800420), (20, 640336), (31, 413120), (32, 400210), (40, 320168), (62, 206560), (64, 200105), (80, 160084), (124, 103280), (155, 82624), (160, 80042), (248, 51640), (310, 41312), (320, 40021), (496, 25820), (620, 20656), (992, 12910), (1240, 10328), (1291, 9920), (1984, 6455), (2480, 5164), (2582, 4960)]