51688520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{99401}}^1$

素因数の和:99425

約数の個数: 32

約数和(自身を含む): 125246520

約数和(自身を除く): 73558000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 99401, 198802, 397604, 497005, 795208, 994010, 1292213, 1988020, 2584426, 3976040, 5168852, 6461065, 10337704, 12922130, 25844260, 51688520]

約数ペア:

[(1, 51688520), (2, 25844260), (4, 12922130), (5, 10337704), (8, 6461065), (10, 5168852), (13, 3976040), (20, 2584426), (26, 1988020), (40, 1292213), (52, 994010), (65, 795208), (104, 497005), (130, 397604), (260, 198802), (520, 99401)]