1289224495

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{631}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 1808920512

約数和(自身を除く): 519696017

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 559, 631, 731, 1105, 1849, 2795, 3155, 3655, 8203, 9245, 9503, 10727, 24037, 27133, 31433, 41015, 47515, 53635, 120185, 135665, 139451, 157165, 352729, 408629, 461261, 697255, 1166719, 1763645, 2043145, 2306305, 5833595, 5996393, 15167347, 19834223, 29981965, 75836735, 99171115, 257844899, 1289224495]

約数ペア:

[(1, 1289224495), (5, 257844899), (13, 99171115), (17, 75836735), (43, 29981965), (65, 19834223), (85, 15167347), (215, 5996393), (221, 5833595), (559, 2306305), (631, 2043145), (731, 1763645), (1105, 1166719), (1849, 697255), (2795, 461261), (3155, 408629), (3655, 352729), (8203, 157165), (9245, 139451), (9503, 135665), (10727, 120185), (24037, 53635), (27133, 47515), (31433, 41015)]