199987020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{20963}}^1$

素因数の和:21031

約数の個数: 72

約数和(自身を含む): 618102576

約数和(自身を除く): 418115556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 9540, 20963, 41926, 62889, 83852, 104815, 125778, 188667, 209630, 251556, 314445, 377334, 419260, 628890, 754668, 943335, 1111039, 1257780, 1886670, 2222078, 3333117, 3773340, 4444156, 5555195, 6666234, 9999351, 11110390, 13332468, 16665585, 19998702, 22220780, 33331170, 39997404, 49996755, 66662340, 99993510, 199987020]

約数ペア:

[(1, 199987020), (2, 99993510), (3, 66662340), (4, 49996755), (5, 39997404), (6, 33331170), (9, 22220780), (10, 19998702), (12, 16665585), (15, 13332468), (18, 11110390), (20, 9999351), (30, 6666234), (36, 5555195), (45, 4444156), (53, 3773340), (60, 3333117), (90, 2222078), (106, 1886670), (159, 1257780), (180, 1111039), (212, 943335), (265, 754668), (318, 628890), (477, 419260), (530, 377334), (636, 314445), (795, 251556), (954, 209630), (1060, 188667), (1590, 125778), (1908, 104815), (2385, 83852), (3180, 62889), (4770, 41926), (9540, 20963)]