28132520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54101}}^1$

素因数の和:54125

約数の個数: 32

約数和(自身を含む): 68168520

約数和(自身を除く): 40036000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54101, 108202, 216404, 270505, 432808, 541010, 703313, 1082020, 1406626, 2164040, 2813252, 3516565, 5626504, 7033130, 14066260, 28132520]

約数ペア:

[(1, 28132520), (2, 14066260), (4, 7033130), (5, 5626504), (8, 3516565), (10, 2813252), (13, 2164040), (20, 1406626), (26, 1082020), (40, 703313), (52, 541010), (65, 432808), (104, 270505), (130, 216404), (260, 108202), (520, 54101)]