1801380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{4289}}^1$

素因数の和:4308

約数の個数: 48

約数和(自身を含む): 5765760

約数和(自身を除く): 3964380

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, 4289, 8578, 12867, 17156, 21445, 25734, 30023, 42890, 51468, 60046, 64335, 85780, 90069, 120092, 128670, 150115, 180138, 257340, 300230, 360276, 450345, 600460, 900690, 1801380]

約数ペア:

[(1, 1801380), (2, 900690), (3, 600460), (4, 450345), (5, 360276), (6, 300230), (7, 257340), (10, 180138), (12, 150115), (14, 128670), (15, 120092), (20, 90069), (21, 85780), (28, 64335), (30, 60046), (35, 51468), (42, 42890), (60, 30023), (70, 25734), (84, 21445), (105, 17156), (140, 12867), (210, 8578), (420, 4289)]