123645840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{515191}}^1$

素因数の和:515207

約数の個数: 40

約数和(自身を含む): 383302848

約数和(自身を除く): 259657008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 515191, 1030382, 1545573, 2060764, 2575955, 3091146, 4121528, 5151910, 6182292, 7727865, 8243056, 10303820, 12364584, 15455730, 20607640, 24729168, 30911460, 41215280, 61822920, 123645840]

約数ペア:

[(1, 123645840), (2, 61822920), (3, 41215280), (4, 30911460), (5, 24729168), (6, 20607640), (8, 15455730), (10, 12364584), (12, 10303820), (15, 8243056), (16, 7727865), (20, 6182292), (24, 5151910), (30, 4121528), (40, 3091146), (48, 2575955), (60, 2060764), (80, 1545573), (120, 1030382), (240, 515191)]