29985880

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8423}}^1$

素因数の和:8523

約数の個数: 32

約数和(自身を含む): 68234400

約数和(自身を除く): 38248520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 8423, 16846, 33692, 42115, 67384, 84230, 168460, 336920, 749647, 1499294, 2998588, 3748235, 5997176, 7496470, 14992940, 29985880]

約数ペア:

[(1, 29985880), (2, 14992940), (4, 7496470), (5, 5997176), (8, 3748235), (10, 2998588), (20, 1499294), (40, 749647), (89, 336920), (178, 168460), (356, 84230), (445, 67384), (712, 42115), (890, 33692), (1780, 16846), (3560, 8423)]