13821275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^2$

素因数の和:132

約数の個数: 36

約数和(自身を含む): 19717488

約数和(自身を除く): 5896213

約数列:

[1, 5, 13, 23, 25, 43, 65, 115, 215, 299, 325, 559, 575, 989, 1075, 1495, 1849, 2795, 4945, 7475, 9245, 12857, 13975, 24037, 24725, 42527, 46225, 64285, 120185, 212635, 321425, 552851, 600925, 1063175, 2764255, 13821275]

約数ペア:

[(1, 13821275), (5, 2764255), (13, 1063175), (23, 600925), (25, 552851), (43, 321425), (65, 212635), (115, 120185), (215, 64285), (299, 46225), (325, 42527), (559, 24725), (575, 24037), (989, 13975), (1075, 12857), (1495, 9245), (1849, 7475), (2795, 4945)]