665500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^3$

素因数の和:52

約数の個数: 48

約数和(自身を含む): 1598688

約数和(自身を除く): 933188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 125, 220, 242, 250, 275, 484, 500, 550, 605, 1100, 1210, 1331, 1375, 2420, 2662, 2750, 3025, 5324, 5500, 6050, 6655, 12100, 13310, 15125, 26620, 30250, 33275, 60500, 66550, 133100, 166375, 332750, 665500]

約数ペア:

[(1, 665500), (2, 332750), (4, 166375), (5, 133100), (10, 66550), (11, 60500), (20, 33275), (22, 30250), (25, 26620), (44, 15125), (50, 13310), (55, 12100), (100, 6655), (110, 6050), (121, 5500), (125, 5324), (220, 3025), (242, 2750), (250, 2662), (275, 2420), (484, 1375), (500, 1331), (550, 1210), (605, 1100)]