12256720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:572

約数の個数: 80

約数和(自身を含む): 33390720

約数和(自身を除く): 21134000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 509, 560, 602, 688, 860, 1018, 1204, 1505, 1720, 2036, 2408, 2545, 3010, 3440, 3563, 4072, 4816, 5090, 6020, 7126, 8144, 10180, 12040, 14252, 17815, 20360, 21887, 24080, 28504, 35630, 40720, 43774, 57008, 71260, 87548, 109435, 142520, 153209, 175096, 218870, 285040, 306418, 350192, 437740, 612836, 766045, 875480, 1225672, 1532090, 1750960, 2451344, 3064180, 6128360, 12256720]

約数ペア:

[(1, 12256720), (2, 6128360), (4, 3064180), (5, 2451344), (7, 1750960), (8, 1532090), (10, 1225672), (14, 875480), (16, 766045), (20, 612836), (28, 437740), (35, 350192), (40, 306418), (43, 285040), (56, 218870), (70, 175096), (80, 153209), (86, 142520), (112, 109435), (140, 87548), (172, 71260), (215, 57008), (280, 43774), (301, 40720), (344, 35630), (430, 28504), (509, 24080), (560, 21887), (602, 20360), (688, 17815), (860, 14252), (1018, 12040), (1204, 10180), (1505, 8144), (1720, 7126), (2036, 6020), (2408, 5090), (2545, 4816), (3010, 4072), (3440, 3563)]