10780020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19963}}^1$

素因数の和:19981

約数の個数: 48

約数和(自身を含む): 33539520

約数和(自身を除く): 22759500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 19963, 39926, 59889, 79852, 99815, 119778, 179667, 199630, 239556, 299445, 359334, 399260, 539001, 598890, 718668, 898335, 1078002, 1197780, 1796670, 2156004, 2695005, 3593340, 5390010, 10780020]

約数ペア:

[(1, 10780020), (2, 5390010), (3, 3593340), (4, 2695005), (5, 2156004), (6, 1796670), (9, 1197780), (10, 1078002), (12, 898335), (15, 718668), (18, 598890), (20, 539001), (27, 399260), (30, 359334), (36, 299445), (45, 239556), (54, 199630), (60, 179667), (90, 119778), (108, 99815), (135, 79852), (180, 59889), (270, 39926), (540, 19963)]