289497890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{4093}}^1$

素因数の和:4754

約数の個数: 32

約数和(自身を含む): 569491776

約数和(自身を除く): 279993886

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 643, 1286, 3215, 4093, 6430, 7073, 8186, 14146, 20465, 35365, 40930, 45023, 70730, 90046, 225115, 450230, 2631799, 5263598, 13158995, 26317990, 28949789, 57899578, 144748945, 289497890]

約数ペア:

[(1, 289497890), (2, 144748945), (5, 57899578), (10, 28949789), (11, 26317990), (22, 13158995), (55, 5263598), (110, 2631799), (643, 450230), (1286, 225115), (3215, 90046), (4093, 70730), (6430, 45023), (7073, 40930), (8186, 35365), (14146, 20465)]