81995140

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{11171}}^1$

素因数の和:11547

約数の個数: 24

約数和(自身を含む): 172674432

約数和(自身を除く): 90679292

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 3670, 7340, 11171, 22342, 44684, 55855, 111710, 223420, 4099757, 8199514, 16399028, 20498785, 40997570, 81995140]

約数ペア:

[(1, 81995140), (2, 40997570), (4, 20498785), (5, 16399028), (10, 8199514), (20, 4099757), (367, 223420), (734, 111710), (1468, 55855), (1835, 44684), (3670, 22342), (7340, 11171)]