208520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 506520

約数和(自身を除く): 298000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 401, 520, 802, 1604, 2005, 3208, 4010, 5213, 8020, 10426, 16040, 20852, 26065, 41704, 52130, 104260, 208520]

約数ペア:

[(1, 208520), (2, 104260), (4, 52130), (5, 41704), (8, 26065), (10, 20852), (13, 16040), (20, 10426), (26, 8020), (40, 5213), (52, 4010), (65, 3208), (104, 2005), (130, 1604), (260, 802), (401, 520)]