25550120

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7177}}^1$

素因数の和:7277

約数の個数: 32

約数和(自身を含む): 58141800

約数和(自身を除く): 32591680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 7177, 14354, 28708, 35885, 57416, 71770, 143540, 287080, 638753, 1277506, 2555012, 3193765, 5110024, 6387530, 12775060, 25550120]

約数ペア:

[(1, 25550120), (2, 12775060), (4, 6387530), (5, 5110024), (8, 3193765), (10, 2555012), (20, 1277506), (40, 638753), (89, 287080), (178, 143540), (356, 71770), (445, 57416), (712, 35885), (890, 28708), (1780, 14354), (3560, 7177)]