249450040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{890893}}^1$

素因数の和:890911

約数の個数: 32

約数和(自身を含む): 641443680

約数和(自身を除く): 391993640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 890893, 1781786, 3563572, 4454465, 6236251, 7127144, 8908930, 12472502, 17817860, 24945004, 31181255, 35635720, 49890008, 62362510, 124725020, 249450040]

約数ペア:

[(1, 249450040), (2, 124725020), (4, 62362510), (5, 49890008), (7, 35635720), (8, 31181255), (10, 24945004), (14, 17817860), (20, 12472502), (28, 8908930), (35, 7127144), (40, 6236251), (56, 4454465), (70, 3563572), (140, 1781786), (280, 890893)]