131785160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{253433}}^1$

素因数の和:253457

約数の個数: 32

約数和(自身を含む): 319326840

約数和(自身を除く): 187541680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 253433, 506866, 1013732, 1267165, 2027464, 2534330, 3294629, 5068660, 6589258, 10137320, 13178516, 16473145, 26357032, 32946290, 65892580, 131785160]

約数ペア:

[(1, 131785160), (2, 65892580), (4, 32946290), (5, 26357032), (8, 16473145), (10, 13178516), (13, 10137320), (20, 6589258), (26, 5068660), (40, 3294629), (52, 2534330), (65, 2027464), (104, 1267165), (130, 1013732), (260, 506866), (520, 253433)]