78432680

素因数分解:

$2^3\times 5^1\times {\mathrm{827}}^1\times {\mathrm{2371}}^1$

素因数の和:3209

約数の個数: 32

約数和(自身を含む): 176761440

約数和(自身を除く): 98328760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 827, 1654, 2371, 3308, 4135, 4742, 6616, 8270, 9484, 11855, 16540, 18968, 23710, 33080, 47420, 94840, 1960817, 3921634, 7843268, 9804085, 15686536, 19608170, 39216340, 78432680]

約数ペア:

[(1, 78432680), (2, 39216340), (4, 19608170), (5, 15686536), (8, 9804085), (10, 7843268), (20, 3921634), (40, 1960817), (827, 94840), (1654, 47420), (2371, 33080), (3308, 23710), (4135, 18968), (4742, 16540), (6616, 11855), (8270, 9484)]