256040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 595080

約数和(自身を除く): 339040

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 173, 185, 296, 346, 370, 692, 740, 865, 1384, 1480, 1730, 3460, 6401, 6920, 12802, 25604, 32005, 51208, 64010, 128020, 256040]

約数ペア:

[(1, 256040), (2, 128020), (4, 64010), (5, 51208), (8, 32005), (10, 25604), (20, 12802), (37, 6920), (40, 6401), (74, 3460), (148, 1730), (173, 1480), (185, 1384), (296, 865), (346, 740), (370, 692)]