210657780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{390107}}^1$

素因数の和:390125

約数の個数: 48

約数和(自身を含む): 655381440

約数和(自身を除く): 444723660

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, 390107, 780214, 1170321, 1560428, 1950535, 2340642, 3510963, 3901070, 4681284, 5851605, 7021926, 7802140, 10532889, 11703210, 14043852, 17554815, 21065778, 23406420, 35109630, 42131556, 52664445, 70219260, 105328890, 210657780]

約数ペア:

[(1, 210657780), (2, 105328890), (3, 70219260), (4, 52664445), (5, 42131556), (6, 35109630), (9, 23406420), (10, 21065778), (12, 17554815), (15, 14043852), (18, 11703210), (20, 10532889), (27, 7802140), (30, 7021926), (36, 5851605), (45, 4681284), (54, 3901070), (60, 3510963), (90, 2340642), (108, 1950535), (135, 1560428), (180, 1170321), (270, 780214), (540, 390107)]