180721380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{430289}}^1$

素因数の和:430308

約数の個数: 48

約数和(自身を含む): 578309760

約数和(自身を除く): 397588380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 430289, 860578, 1290867, 1721156, 2151445, 2581734, 3012023, 4302890, 5163468, 6024046, 6454335, 8605780, 9036069, 12048092, 12908670, 15060115, 18072138, 25817340, 30120230, 36144276, 45180345, 60240460, 90360690, 180721380]

約数ペア:

[(1, 180721380), (2, 90360690), (3, 60240460), (4, 45180345), (5, 36144276), (6, 30120230), (7, 25817340), (10, 18072138), (12, 15060115), (14, 12908670), (15, 12048092), (20, 9036069), (21, 8605780), (28, 6454335), (30, 6024046), (35, 5163468), (42, 4302890), (60, 3012023), (70, 2581734), (84, 2151445), (105, 1721156), (140, 1290867), (210, 860578), (420, 430289)]