81645540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1360759}}^1$

素因数の和:1360771

約数の個数: 24

約数和(自身を含む): 228607680

約数和(自身を除く): 146962140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1360759, 2721518, 4082277, 5443036, 6803795, 8164554, 13607590, 16329108, 20411385, 27215180, 40822770, 81645540]

約数ペア:

[(1, 81645540), (2, 40822770), (3, 27215180), (4, 20411385), (5, 16329108), (6, 13607590), (10, 8164554), (12, 6803795), (15, 5443036), (20, 4082277), (30, 2721518), (60, 1360759)]