81891080

素因数分解:

$2^3\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{1453}}^1$

素因数の和:2873

約数の個数: 32

約数和(自身を含む): 184512600

約数和(自身を除く): 102621520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1409, 1453, 2818, 2906, 5636, 5812, 7045, 7265, 11272, 11624, 14090, 14530, 28180, 29060, 56360, 58120, 2047277, 4094554, 8189108, 10236385, 16378216, 20472770, 40945540, 81891080]

約数ペア:

[(1, 81891080), (2, 40945540), (4, 20472770), (5, 16378216), (8, 10236385), (10, 8189108), (20, 4094554), (40, 2047277), (1409, 58120), (1453, 56360), (2818, 29060), (2906, 28180), (5636, 14530), (5812, 14090), (7045, 11624), (7265, 11272)]