256937290

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1\times {\mathrm{887}}^1$

素因数の和:1326

約数の個数: 32

約数和(自身を含む): 469929600

約数和(自身を除く): 212992310

約数列:

[1, 2, 5, 10, 83, 166, 349, 415, 698, 830, 887, 1745, 1774, 3490, 4435, 8870, 28967, 57934, 73621, 144835, 147242, 289670, 309563, 368105, 619126, 736210, 1547815, 3095630, 25693729, 51387458, 128468645, 256937290]

約数ペア:

[(1, 256937290), (2, 128468645), (5, 51387458), (10, 25693729), (83, 3095630), (166, 1547815), (349, 736210), (415, 619126), (698, 368105), (830, 309563), (887, 289670), (1745, 147242), (1774, 144835), (3490, 73621), (4435, 57934), (8870, 28967)]