440128520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{846401}}^1$

素因数の和:846425

約数の個数: 32

約数和(自身を含む): 1066466520

約数和(自身を除く): 626338000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 846401, 1692802, 3385604, 4232005, 6771208, 8464010, 11003213, 16928020, 22006426, 33856040, 44012852, 55016065, 88025704, 110032130, 220064260, 440128520]

約数ペア:

[(1, 440128520), (2, 220064260), (4, 110032130), (5, 88025704), (8, 55016065), (10, 44012852), (13, 33856040), (20, 22006426), (26, 16928020), (40, 11003213), (52, 8464010), (65, 6771208), (104, 4232005), (130, 3385604), (260, 1692802), (520, 846401)]