71190040

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4483}}^1$

素因数の和:4891

約数の個数: 32

約数和(自身を含む): 160616880

約数和(自身を除く): 89426840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 4483, 7940, 8966, 15880, 17932, 22415, 35864, 44830, 89660, 179320, 1779751, 3559502, 7119004, 8898755, 14238008, 17797510, 35595020, 71190040]

約数ペア:

[(1, 71190040), (2, 35595020), (4, 17797510), (5, 14238008), (8, 8898755), (10, 7119004), (20, 3559502), (40, 1779751), (397, 179320), (794, 89660), (1588, 44830), (1985, 35864), (3176, 22415), (3970, 17932), (4483, 15880), (7940, 8966)]