74642840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{43397}}^1$

素因数の和:43451

約数の個数: 32

約数和(自身を含む): 171856080

約数和(自身を除く): 97213240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 43397, 86794, 173588, 216985, 347176, 433970, 867940, 1735880, 1866071, 3732142, 7464284, 9330355, 14928568, 18660710, 37321420, 74642840]

約数ペア:

[(1, 74642840), (2, 37321420), (4, 18660710), (5, 14928568), (8, 9330355), (10, 7464284), (20, 3732142), (40, 1866071), (43, 1735880), (86, 867940), (172, 433970), (215, 347176), (344, 216985), (430, 173588), (860, 86794), (1720, 43397)]