618651180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{490993}}^1$

素因数の和:491015

約数の個数: 72

約数和(自身を含む): 2144661792

約数和(自身を除く): 1526010612

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 490993, 981986, 1472979, 1963972, 2454965, 2945958, 3436951, 4418937, 4909930, 5891916, 6873902, 7364895, 8837874, 9819860, 10310853, 13747804, 14729790, 17184755, 17675748, 20621706, 22094685, 29459580, 30932559, 34369510, 41243412, 44189370, 51554265, 61865118, 68739020, 88378740, 103108530, 123730236, 154662795, 206217060, 309325590, 618651180]

約数ペア:

[(1, 618651180), (2, 309325590), (3, 206217060), (4, 154662795), (5, 123730236), (6, 103108530), (7, 88378740), (9, 68739020), (10, 61865118), (12, 51554265), (14, 44189370), (15, 41243412), (18, 34369510), (20, 30932559), (21, 29459580), (28, 22094685), (30, 20621706), (35, 17675748), (36, 17184755), (42, 14729790), (45, 13747804), (60, 10310853), (63, 9819860), (70, 8837874), (84, 7364895), (90, 6873902), (105, 5891916), (126, 4909930), (140, 4418937), (180, 3436951), (210, 2945958), (252, 2454965), (315, 1963972), (420, 1472979), (630, 981986), (1260, 490993)]